My reading of the downvoted question was one of genuine curiosity of why the author chose that as a favorite trigraph, as in “why that one instead of another”, not as criticism of the choice of trigraph over something more conventional. I may be wrong of course, but it didn’t seem like a particularly malicious question to me and your rationale unfortunately doesn’t convince me otherwise. Not that it has to, this is all very subjective after all, but just offering up a counter opinion.

I gave the question a +1 because I, as previously stated, read it to be genuine curiosity. Maybe a smiley would’ve helped, I don’t know. ¯\_(ツ)_/¯