[!@#$%]

[AngryCola]

Either seems fine to me. But usually when something like !@#$% is used to replace a word the number of characters matches the word that is being censored.

That's not the case with [censored], so it has my vote.

[B Dids]

I like !@#$% but not [!@#$%]

I like it just 'cause it seems old time commicy, but then I can see why people wouldn't.

Or we could just replace all profanity with random text strings like "shimmering egg princess".

[Schneids]

what the [censored] is Cola an author of?

Keep it as [censored].