Why did i get flagged for putting Supergirl is a porn star ruined Cbs internet questions flag or removed?

It's simply a misuse of the Q&A format that caused your question to be deleted. If you've bothered to read the Community Guidelines, the rules clearly stipulated that all questions should only be written in the form of a question. Simple as that.

Perhaps because it didn't make sense, also it appears to be a statement rather than an question or answer, which means it would not belong on YA.