For large teams and channels, I would like to see who actually is following a channel.
So when I going to write a new post, I can decide if I explicitly mention someone, or not, based on set of persons following the channel.

You have to add each member one by one in a team. It would be nice if it could be a grouping option to add multiple users with the same type of permissions (as if I insert a list of people with any delimiter, then check for names and click add) or import users from .csv / .xlsx file (users with roles).

I'd like most recent conversations/replies on top. Scrolling to the bottom to see the newest replies is a terrible experience.

It seems that to get proper notification about channel activity, you have to "follow" a channel. However this is far from obvious as the option is buried in a context menu. Furthermore, the fact whether a channel is followed/not followed is not clearly indicated.

I would prefer if the follow/unfollow option was indicated in a similar way as the favourite channel star, placing a symbol besides the channel name that can be toggled with the mouse.

Furthermore channels in the "n more channels" popup currently can't be followed. That should be possible.

When a channel is deleted its activity remains in the Notifications section of the Activity tab and its conversations are visible. Also the ellipsis will allow you to select 'Delete this Channel' (again) and the File tab below the ellipsis shows an 'Unknown Error' message (I'd deleted the SharePoint folder too). When a channel is deleted, everything related to it in the UI should disappear. There is a valid argument to retaining the Files and Notes on SharePoint, to be deleted manually if desired.

If there's only one more channel, it doesn't make sense to hide it behind a "More channels dropdown", you're not saving any space. I've noticed this with a few things in Teams, if there is room to display all of the channels vertically, or very few extra channels, it's bad UX to hide them behind a link.

When I search for a team, I can only search on the first word of the team name. Searching should search all the words in the team name.

If I have a team called Software Deployments and I do a search for Deployments, I won't find the team. I have to search for Software and then it brings up Software Deployments.

Please fix this ASAP.

Every team and channel has a description that can be entered, yet there doesn't seem to be any way to see that description unless you can edit. How about making the description visible under the title in the right window? Maybe even a setting that allows me to make descriptions visible or not (on/off switch).

It would be really useful to copy a team with all Channels and files/tabs associated, this way we could create a template and copy it when creating new teams

At present, it's very easy to miss seeing an important post in a sea of posts, on a channel that sees a lot of traction. There should ideally be an option to pin important posts to the top of the channel, so that it's not inconspicuous.

Need to have a way to integrate with Outlook tasks, or have task management within teams that operates like Outlook tasks allowing you to get reminders for due tasks, view your tasks list etc.

Need ability to move or migrate conversation data in the event we merge an old team to a new one

It would be nice to embed a conversation in SharePoint as it is possible with yammer. This will allow us to create a general Teams with all employess as members with a main channel. This channel should then be shown in our SharePoint Intranet as a news tile (Webpart).

the ability to sort teams alphabetically would be nice. and possibly other filters.

I found a similar idea already posted but not as simply put.

I want to mention a team from within a different team.

Real world scenario: we have a team for gym members, and we're setting up another team which is likely to attract people from the same interest group as the gym. We want to @mention this new team inside the gym team, allowing people to click the mention and go to the team and join.

Any roadmap that MS Teams support adaptive cards ?

https://developer.microsoft.com/en-us/windows/projects/events/build/2017/introducing-adaptive-cards

We have a recurring meeting tied to the team's channel and the conversation history has grown way too long over time. Each reply also notifies the accumulation of all participants even if they're not attending the current instance anymore.

We have an RSS connector publishing posts to a channel. Sometimes, these posts aren't relevant to the channel.

It would be good if anyone (or possibly just the Group Owners) could delete these connector generated posts.

Without deleting the post, relevant channel connect gets pushed up the feed meaning its more likely that useful conversations aren't seen.

Sometimes it happens, that a reply to a conversation is not created (by user) as a reply but with a new conversation.
I must say, that this is happening very often.

Due to this fact, I request a feature to combine existing conversations into one!

That would be also helpful for conversations that are created by receiving Emails with the Emails-connector. Often those conversation based on Emails should get combined or get connected afterwards.

This will help us categorise every conversation under the umbrella of Hash Tag also provide find option do that any information can be found using keywords