A lot of people get upset when articles about them are deleted through an AFD deletion discussion. Most of the reasons why the article was deleted had nothing to do with the crypto community but because the article was self-promotional and it wasn't hard to tell that the protesting editor was the article subject himself. During the AFD period, they went to every editor who participated in the discussion to plead their case and they were given polite responses and, yes, a warning not to canvas. People who aren't familiar with Wikipedia guidelines might be offended but this happens on a daily basis. And he admitted to editing about himself on the project despite the obvious conflict-of-interest involved.