Support style subs will continue to operate, reopen, or stay open. Heart conditions, addictions, etc. Until those groups are created in Lemmy, there is no way those users will go. And if there are those that scrap their account on Reddit, they would likely create a lurker account there just to participate in those subs
yep, those subs will see a slower fade as their users need to make sure that there is a platform to assist them alongside their mod team, be it here or in other platform, 100% understandable