I ask because I've seen SSIDs with meaningful characters ()<>;? cause trouble with some network managers. I presumed at the time that this was due to the SSID string being passed as an argument to some script.

I've encountered this on my old Android phone and my old Debian laptop. I encountered it often because a friend of mine used to have an emoticon in the SSID for his home router. (Really annoying! I couldn't connect to anything when his router was in range.)

Note: it could very well have been a different problem. I didn't investigate.