Or, they just want to block you! It’s no big deal. I think Grindr users are allowed 10 blocks a day....someone correct me if I’m wrong? So blocking to clear up your array of users wouldn’t be all that useful.
I block when someone is rude/gross/mean, that’s obvious. I also block if I’ve had a complete and finished convo with someone, but it’s clear they aren’t interested in me...that’s for my own sake of not remembering the outcome and trying again, lol!