> I think it's more likely the first time this happens the person is actually guilty, and there will be a huge debate as to whether or not it's a good thing.

No there won't. There have been serial killers who used common apps to find their victims, along with people who rob, assault, harass and stalk people they find on apps. People don't really care. Even the justice system doesn't care because the companies are able to argue that Section 230 means that they aren't liable for what users do with their products[1].

[1] https://www.americanbar.org/groups/diversity/women/publicati...