Years ago I asked this question on meta if ID requests on doujins were on-topic. The implied answer from the comment was that they were if the question was written well enough.
After that, we blacklisted ID request with the exception that we had to be iding something from within a series.
Recently, this question was asked to ID a shounen ai/yaoi fanfiction that used One Piece as the setting.
Now considering that this is from a known series, would it still meet our exception for ID requests?
Also, would a doujin (which is too a fan-made) also be an exception to the rule if example pages were shown? (using the example from my previous question, if I had posted the page of Presea pregnant with Alicia with her rather than just described it)