When you post some idea, and it is misinterpreted in ways never intended, that can be quite useful. It can teach you to be more careful in how you state that idea, so that you can stop that happening.

As for offending people, you can use that as a guide to finding ways of stating that idea in ways that try to avoid offending people. Where the idea in itself is causing the offence, it's going to happen - but often it's more the way the idea is phrased that sets off the reaction, and sometimes it's a case of the kind of misinterpretation I mentioned in the last paragraph.

Flame wars are a menace, but you never need to join in them, or respond in kind if you get flamed.