Before you post here, please be aware that each site has a culture.
Some allow little negativity, some allow posters to say anything, even attacking other posters.

Posters here can disagree, but there can never be comments about the posters themselves.

Here is an example:

The AABB way of disagreeing:
First post: Michele sure has an ugly nose.
Response: I think her nose is fine. I bet in the real world, people wouldn't even notice

Not acceptable here:

First post: Michele sure has an ugly nose.
Response: something must be wrong with you to say something like that. You shouldn't post things like that.

NEVER comment on the poster, only the post.

New posters... good idea to read this