If there is some other reason why you don't like "YC reject" in titles (unhealthy us vs them mentality?), why not comment on the submitted article asking the submitter to edit the title? I'm not affiliated with knewjax, but it looks to me from his comments that he would be happy to comply. I think most, if not all, previously-rejected applicants who post here would do the same.
At the same time I can respect PG decision to edit the title. After all one of the goals in titling my post with "YCombinator Rejected Company" is to gather more attention for our site. Can you fault me?
It is truthful, but it is not a description.
I was relying on a less inclusive meaning of the word: to describe as in to relate intrinsic properties of something. Yes, 'intrinsic' itself is a sloppy concept defined mostly by convention, but that's true for most of our language. I'll leave it at that, apologize for my sloppy language, and appeal to common sense.
My point is that the "rejected by YC" tag doesn't add much information, certainly not enough to merit being in the title. Its main effect is attention grabbing. Those priorities are inappropriate enough for me, and I support the banning of this kind of stuff.
It would obviously mean exactly the same thing.
Just describe what your startup is, not what it isn't.
Which incidentally is probably also a large part of the motive for this post. If you were really just interested in the abstract question, you could have avoided the appearance of an ulterior motive by making this a straight question instead of linking to your original post. Want me to change that for you?