From experience, those I've spoken to, and what I've read online I have not come across a single case of someone successfully appealing their ban and being reinstated; has it happened to you or anyone you know?
Their 'appeal' system seems to be a facade (I was told I'd get a decision on my appeal, I have now spent twice as long waiting for appeal as I have actually using the app. And this week the app has just started glitching on any attempt to log in) which is not great for an app as ban-happy as Hinge (It still hasn't told me what I'm alleged to have done, just "Your account was banned for breaking one or more of our policies")