The most obscure person I can think of on Wikipedia is a man called Edmund Trebus. He was a real person who was an (if not the) unwitting anti-hero in a British TV series about cleaning up a London borough. Trebus was a notorious hoarder whose lifestyle spilled out of his property, creating an eyesore and constant problems for the local council.

I’m not saying do that, but there may be ways to generalise from that. Also, that series was a while ago now and I fear Wikipedia might eventually remove his article for being insufficiently notable.

Alternatively, are you musical? A one hit wonder would ensure your fame (or infamy). Mathematical? Solve a famous theorem (What, like it’s hard?). Programmer? Invent a hugely popular programming language and you’re sure to get one. Artsy or extroverted? Become a “content creator” on TikTok or wherever the kids hang out these days.

Worst case, you end up a footnote in the page about your creation(s). But would that be so bad?

Or come at this from another angle entirely. Create an article. Or edit one. Not about you but about something else. No trolling. Be informative. Provide sources. Your work may last decades, and if you do it under your pseudonym, or - horrors - your real name, as a login, you’ll be recorded that way, at least for a while, in the page history.

And if you create one that doesn’t get deleted immediately, well then, no-one can take away you created that page even if your original work disappears over years of constant refinement by other people.

Lastly, there are other places for immortality. I frequently see the same (real!) names cropping up in entries in the OEIS, for example, most of whom don’t have their own Wikipedia entry. Be aware that their standards are pretty high these days though.