I saw some things that bother me, don't take my word for it but here's what I think.
Replace the word "discussion" by "topic" or "thread" depending on the situation. I think about the definition next to each thread:
Discussion without answers - Unsolved topic
Discussion underway - Open topic
Discussion ended - solved topic
Discussion blocked - locked thread (or topic)
Suggestions instead of "suggestion" in the forum title.
Book a cordial welcome to new users. That's straight out of the auto-translator :-D Remove the "book" and replace by, "give" or "provide".
The rest of the rules are a little corny too... "post his message?
Many little things to tweak, keep up the good work!
Hey!! I saw some strange things too.. Things that were not supposed to be here like in the bottom of your question, there is something written which is not English. I think that those who moderate that website are not pure English people! Now I can be wrong, who knows!!