What will happen if Robinhood tries to go public now?

When it comes to demand for the shares: doesn't matter. IPO price discovery is done by institutional investors, not retail.

Impact on the fundamentals is a bigger risk to them, as RH's target market is retail/individuals. People have short memories though, and they aren't the only ones restricting their users from trading (despite getting the most flak for it).

The internet will forget about this all by next week

I mean the truth was that it was a liquidity event. Now they have liquidity, people will trade, etc. It will come out that it was that. They prob won't lose the retailers.

I personally pulled out though when I heard the news, just in case. Freaking Bitcoin shot up after I pulled though... smh.