I would guess that many of us have unintentionally offended someone else in chat. Sometimes it moves so fast that it can be easy to misinterpret what is written.
IMHO, it is not very different from what can happen in face to face conversations.

We are all individuals and view what is written from our current perspective of our own life. Today some written words sound positive - tomorrow the same words could sound like criticism.

I think DocJohn has set up a very safe and comfortable place for all of us to exchange our thoughts, feelings and opinions. We are very fortunate to have a forum in which we can be ourselves and are only charged with not deliberately hurting someone else.