I tried to mention this chat room sometimes in meta when some question or answer was related to the topic of this room. But it seems that did not attract too much attention.
As you have mentioned in your post, apart from reopen review queue there is also a thread on meta for reopen requests. (And there is also a dedicated chat room.) For the benefit of the users who are unaware of them I'll mention that links can be found, for example, in the re-open tag-info here on meta. — Martin Sleziak54 secs ago
I am not sure whether it is needed, but I will also ping @DanielFischer since he interacted with the question. (In case you have something to say about that question. You were asked by the OP to post your comment as an answer.)