I feel like I have to do it, because people here make assumptions very easily. Like the age. I always have to mention my age (25) in my posts somewhere because people might assume I’m 18 and I don’t want that.
Same with nationality. People here brand you an “American” very frequently even if you’re not one.
No, mentioning your age or nationality in your questions is not considered spam. If you feel like your age or nationality are important information to give when you ask a question, then you are free to include that.
I wouldn't think so - It would have to be exact same phrase and there is an inbuilt block against that - If you write a different post each time but finish with I am 25 and not American, you will be fine.
You can't know: some gross insults are accepted by mods again and again, irony about contents can be removed at a wimp on Gag. You just can't know, it depends on the mood of the mod who happens to read it.
You know you profile says you are 24 or younger right? Also why does it bother that people think you are American? I personally never think someone is a American here unless, they said they were or it is on their profile.