I wrote a question for submission, but got a message to say the 'system had detected activity it didn't like' (not sure of the exact wording, but it was something to do with suspecting a malicious attack). I haven't had anything like this happen before and I'm not locked out completely but I am a bit concerned.

Can anyone explain why this should suddenly happen and if the question will get through or need to be resubmitted?

Were there any weird symbols in the question? Anthing that would be used in HTML coding? <, >, etc.

I used ordinary brackets ( ), I think. Would that be the problem?

I've had a similar problem and got blocked out for a short amount of time. I removed brackets since I thought they were the problem, but it still gave the error. The question has apostrophe marks, a question mark, commas and a full stop. The answers have commas and full stops only. What gives?

I've tried cutting it down, dicing around, but I don't want to get a longer block so I'm asking here. How do I get the question through?