Maybe this is for Roberto :
I see that some times a user is told not to incorporate HTML in his/her post. I always wondered because no user does that (IMHO) while still it clearly often happens. But I just now noticed this :
When one with sometimes much effort made the blue button (see attachment) appear for nicely incorporating some PRT code (can be 20 times (^)F5), you can Edit the post right after, and then the chance exists that the button is again not there. And it is there where the HTML appears in the post (plus no PRT code as such) when the post is saved again.
I just noticed it by sheer accident, while normally this will go unnoticed (your PRT code is still quite normally visible, only not in the box that should surround it).
It now becomes quite cumbersome to re-edit the post, in order to let the button re-appear and have the code OK again, also knowing that we don’t have infinite Edit-time …