There have always been false teacher and continue to be false teachers today. Pointing this out is not wrong although many people are squeamish to do so in our politically correct and "tolerant" society. The fact of the matter is that doctrine is important and accepting a false doctrine will have dire consequences.
The purpose of this site is not to condemn people but to inform and wrong. If we say something is a false teaching we will show the scriptures that show the teaching to be false. If we say someone is a false teacher it is because they teach a teaching that is shown from the scriptures to be false, and again we will give you the reference so you can go see what the Bible says for yourself.
Our hope is that all false teachers will repent teach the truth and thus be saved. We point out error not with an attitude of superiority or contempt, but out of love.
"but speaking truth in love,..." Ephesians 4:15