I’ve received quite a number of requests via that thread and only one person has actually sent me a direct message with their request. I don’t think I’m the only one when I say - I don’t want to use voice chat until I better get to know the individual and have played with them a few times or I cannot use the voice chat at that time. It also helps to know which u/ sent the request. Send a dm stating your Switch name with the request please, it helps to start with a bit of communication and since Nintendo is a wang and supports voice and not text, we’ve got to handle this ourselves.
Happy grinding and good luck to you all.

EDIT: I only just realised that Diablo 3 isn’t even supported with the voice chat function, which makes this even more important.