SE defines Star Trek canon on its info page: [star-trek-eu] (novels, comics, video games, and fan fiction outside of the Star Trek canon)
I admit that the poster mentioned the answer is from the EU novel. That fits the letter of the law re: saying it is non-canon, however the fact is unreasonably obscure. A rare minority of voters will see "In the EU novel" and automatically understand it is non-canon. Voters deserve a clear unambiguous announcement that an answer is completely non-canon.
The bounty asks for canonical answers with detail, the poster wrote an Extended Universe answer which is by definition non-canon. My very simple request - the first comment on their answer - was "... It's canon?" The enormous effort this poster is exerting to maintain the ambiguity of their answer has gotten out of hand. The motive seems clearly to just win the bounty at all costs, using their reputation as leverage, at the expense of finding a quality canonical answer.
My very simple edit was to move the existing bounty text from the bottom of the page to the top of the page. The exact text provided by SE was used: "A detailed canonical answer is required to address all the concerns." This was rolled back then I was absconded in comments about "adding info" to the question. I added nothing at all.
The answer is by definition non-canonical and provides inadequate indication that the answer is non-canonical. I have tried at great length to get the poster to very simply qualify their answer with the simple words, "This is non-canon" and they refuse. The reputation of the poster drives voters to believe their credibility, which credibility I think is being abused.
I simply wish voters to clearly understand if they are voting for a valid answer. They can either place the qualifying text into their answer or at least stop rearranging my question to fit their answer. Hiding behind the letter of the law degrades the quality of the site.