Nah, humans are great at pattern-matching, even just being aware that some find 67 funny is enough for you to start spotting it. I started finding some amusement in it just due to exposure from younger coworkers.

Depends where you live, it’s somehow still alive and well in Poland! You’d usually use the lowercase xd for a more refined and low-key vibe tho, the full caps ones are reserved for special occasions.

Arbitrarily forcing a choice to clarify your feelings on the matter can actually be very useful, it’s just a bit rude to use other people for it. When I have a choice like this I’ll sometimes throw some dice (d6, 1-3 for white, 4-6 for blue), if I’m happy or don’t mind what they landed on then it’s the correct choice, if I’m not I’ll probably realize which option I was secretly hoping for and go with that.