Isn't that an enormous risk though? As soon as such abuse becomes known, that individual will never be trusted again.
unfortunately this would lead to more innocents getting coerced into various schemes, or simply their signature stolen.
https://en.wikipedia.org/wiki/There%27s_a_sucker_born_every_...
Maybe for high-stakes things, serious journalism or closer interactions, but most of the time in the Internet we just consume content by unknown people and we don't stop to check their trustworthiness. In the OP's context (game wikis) you're probably not going to know the people signing the wiki's content.