Re: How about restricting low rank people from opening new topics
It is not good to restrict all the Newbies to open a new topic because many Newbies come here to ask their doubts or questions by starting a topic. If they are restricted, how do they clear their doubts? Beginners and help section is mainly for the new users to ask their queries. Due to spammers, restricting other genuine newbies is not good.
If you find any posts that look spam, you can report that topic. Moderators will validate if the topic created is for spamming or not.
The topics will not disappear simply if the thread that is posted has any flaws or against the forum rules, then only it will be deleted. You can see the reason for the post deletion in your PM.
If you find any posts that look spam, you can report that topic. Moderators will validate if the topic created is for spamming or not.
People do get notification on deletion of their own post. They must feel responsible for their inappropriate post. But, disappearance of a topic itself where one poster has contributed with all efforts and time, is definitely not the poster's mistake hence I think this needs to be addressed as early as possible 
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.]The topics will not disappear simply if the thread that is posted has any flaws or against the forum rules, then only it will be deleted. You can see the reason for the post deletion in your PM.