Are they re-opening properly, or doing a protest/malicious compliance version? E.g. Steam is open but now they're all posting about water vapour instead of games.
Build the community you want hear and in time people will come and this time it will be owned by the community and not a faceless corporation
The admins are also forcing the subs open, mods who don‘t do it themselves get replaced.
Anyway, the best course of action is to thrive independently. Community is where people are and while surely these little addicts are now on Reddit again, they can and will come here if we make it interesting to be here and meanwhile Reddit/spez does even more dumb shit. Which with the looming IPO is all but guaranteed.
I believe most if not all subreddits specified the period to go dark. I’d not count on thier statement even if they said for good since reddit managment can override their promise.
Do your part and start the sub here. They might engage if they see content being posted.
r/RedDevils only committed to 48 hours, but I know my time on Reddit is done once RIF is gone so setup a new community here. There will always be people who go back because it's what they know, but there will be plenty of people who leave when the third party apps are killed off. Best thing to do in the meantime is advertise on the subreddit, especially if you see anyone criticising Reddit/mods for reopening/etc