I asked about this in my previous thread, but no one answered :'( Is it against the rules to post more than 1 thread in a forum topic? Because people have been telling me that. But if thats the case, how do people have 100+ forum credits? There arent even 100 forum topics.
So if I wanted to say 10 suggestions, can I make a thread for each suggestion? Which means I could make 10 threads in the topic Ideas/Suggestions? The suggestions will be different. And lastly, what topics can i post in to get forum credits? I only know Questions/Help and Ideas/Suggestions. Thanks so much!

If you have 10 Ideas/Suggestions, definitely do NOT create 10 Threads.
It is unnecessary.
Just create 1 Thread and put all the Ideas/Suggestions in it.
Try to be sure you are not duplicating other people Suggestions as well.

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This thread tells you about Forum Credits and which Sections do not give Credits.
Another one not mentioned is the General Discussions.