Very interesting thread. I agree that our society has become too "politically correct".
However, one must also learn a bit of good, old-fashioned tact when dealing with people on-line because the very nature of the medium (the written word) makes it difficult to convey the inflection and tone of the message...in other words, you might upset someone unintentionally, which is a shame, and can very quickly become blown out of all proportion.
We must also learn humility, to be able to deal maturely with constructive criticism.
We're all here because of one thing; a common interest in the world's most fascinating creatures. This binds us as like-minded individuals, and we should all make an effort to treat everyone and their opinions with respect. You don't have to agree.
Just my two cent's worth.
Have a good week-end everyone!