Today i've created my account on this forum.

I've posted only one message (http://kdenlive.org/forum/problems-mp4-clip)

I've tried to add a new comment, but i have the error:

"Your submission has triggered the spam filter and will not be accepted."

Why ?

I am not the site maintainer to look into the reason why. However, you should know that spam on the Internet is a big problem, and it has been a big problem here as well in the past. So, the filter must be rather strict to make this forum tolerable to all. There were many complaints, threats to never return, and I believe some may never will.