Unfortunately thats just human nature, and as someone pointed out, you cant get a feel for how a post is to be taken in written form.
You might say that its a neccessary trade-off : not overpoliceing the forum against the odd argument surfacing.
Any new members will see that a moderator will step in only when absolutely neccessary and take the rough with the smooth accordingly. Of course, the same new member will probably read this topic and see that we're all pretty fair-minded and just want to have a forum where people can be themselves without fear of being censored.
As long as we are all honest with each other, all disagreements can be sorted and I think it's important to let our members see this happening - Warts-and-all.
JM2PW