There are tons of examples of how 4chan routinely traced down individuals based on little evidence. For more recent examples see bellingcat.com it's amazing ho

There are tons of examples of how 4chan routinely traced down individuals based on little evidence. For more recent examples see bellingcat.com it's amazing how far you can go with just open sources and a lot of determination. It also helps to have multiple people do the searching, if like a 100 people would trawl through your posting history here they could probably create a pretty detailed profile of you. For example, on my hackernews profile I link to my mastodon handle. If you would go through my mastodon posting history you would see that I occasionally post links to YouTube music videos I like, I also occasionally post comments under YouTube videos under my real name. If you took all videos I've ever posted to mastodon in like a 2-year period, and compared the comments you could probably find out what my real name is. It would take some hours of menial work, but it's pretty straightforward.