Thank you for the feedback. Changing the default setting is under review by the feature team, and your feedback is very useful as they are evaluating.
An error occurred while saving the commentTravis McGrath commented
Is this review any different from the last 3 times this item reviewed? Because it's been under review since 1/23/2018, over 2 years.
Honestly, this is the preferable alternative to having it off by default, but options to set defaults at the global level would be far more beneficial.
if you have an existing post that you want to show in a different channel, you can edit the message and cross-post. This will add the top-level post to the different channel, but will not include the full set of replies. We will keep this request in mind as we evolve the cross-posting feature in the future and update if the status changes.
Details on cross posting can be found here: https://support.office.com/article/cross-post-a-channel-conversation-in-teams-9c1252a3-67ef-498e-a7c1-dd7147b3d295.