- Streaking and flashing are not the same thing, and they are perceived very differently. Running through somewhere naked is a prank or a gesture of defiance. Flashing is seen as an overtly sexual act.
- Again, having sex and becoming pregnant are very different things. Sex is something you do because you want to. Pregnancy in this case is probably an accident.
- Most importantly, faking pregnancy is a stupid thing to do. You had to know they'd figure it out eventually, and pregnancy is a serious issue to most people.
Here's the thing. The people you are copying are doing these things because they want to. Or they're doing them for attention, but not being as obvious about it. What you're doing is obviously attention-seeking behavior, and people look down on that. If you want to act out, do it for yourself. Do it for your own entertainment or freedom of expression, and the attention will probably come anyway. Don't do it just for the attention. There are better ways to get it if you want it.
As for jumping off a bridge, nobody is praised for that, but it is true that the reaction is different. If an NT jumps off a bridge, it's because of problems in his life. If an aspie or anyone with pretty much any other neurological or psychological diagnosis jumps off a bridge, it's because they were unstable. The truth is that nobody jumps off a bridge unless they're a little unstable. Most just require a bit of a push to become that way, even us.
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"If knowledge can create problems, it is not through ignorance that we can solve them." - Isaac Asimov