Hi Lucio,
You can simply delete everything and we clean up!
This starts from not having threads altered, censored or cut off. That's part of our open forum which we treasure. So we, in general don't like changes, although we do it all the time. first you can edit your post for a certain time period. After that the post is fixed. If there are issues we need to deal with without altering the sense of the thread a moderator will help you. Or else Nicolas Claris and I are always avaialble.
If no one has substantially rssponded to a thread we have no angst to removing the thread. OTOH is other photographers have gone to the trouble of poating, we might hesitate. Each case is on it's own and we try to be immediately responsive. We have deleted things when asked or rpelaced an entire post with new text as long as the thrust was the same.
The first post in a thread is yours. At that point deletion is up to you entirely. Gradually your "ownership" of that thread is diluted by the shared efforts of everyone else.
In other fora, the deletion of the first post removes the entire thread. We see that as grossly unfair since that represents trashing of other points of view and that is contrary to free speech and an open forum.
We are continually learning how to do this better so we are always open to new ideas. We can't be changing things every day of the week but we value any input which is best sent by a PM.
Asher
In brief, if you currently have a thread that needs surgery, let me know!