> The Reddit comments usually aren't long enough to be meaningful, and I think that there are now organised p&d teams, so that level of investigation isn't very useful anymore
The Yahoo comments usually weren't that long either. The key point was that while each individual post gave you, on average, only a little but of information, in the aggregate you got enough to narrow down who the source was to within 5 people. From there, you could usually narrow it down using "legwork" etc.
With something like Robinhood, where you're trading, presumably they have your bank details (and phone details) so pinning your trades on a irl person is a given.
The Yahoo comments usually weren't that long either. The key point was that while each individual post gave you, on average, only a little but of information, in the aggregate you got enough to narrow down who the source was to within 5 people. From there, you could usually narrow it down using "legwork" etc.