> Would you think it was rude if you saw this link as somebody’s status message?
Absolutely not; clearly communicating expectations makes life easier for everyone, which is (much of) what politeness is supposed to be about in the first place. The only possible suggestion I have is inlining a 1-sentence summary.
(Potential) counterpoint: there are those who sometimes prefer indirect language.
E.g. I would prefer if you said "I don't mean to be rude, but in my honest opinion you're looking kind of shabby these days" rather than "You're ugly" (statements exaggerated for emphasis).
I think this matters less in the context of the original thread (the "hello" back-and-forth).
Absolutely not; clearly communicating expectations makes life easier for everyone, which is (much of) what politeness is supposed to be about in the first place. The only possible suggestion I have is inlining a 1-sentence summary.