What are you talking about? It is forbidden to write what I think? Really? Are we in North Korea???
OK. Realized. It seems I have violated secret forum rules:
1. It is forbidden to write here what you think
2. It is strongly forbidden to write here if you are not asked anything.
Thank you for clarification!
Just to clarify, this is the pertinent rule: "No zero or low value, pointless or uninteresting posts or threads"
Really, it casts a large enough net/umbrella to catch most of the varied forms of spam. Burst posting is merely an action that one performs to create multiple spam posts.
A spam post could be deemed so due to the context of the thread:
Suppose there are already 10 replies, of which highlight similar solutions or remarks about the given topic. If you decide to write an 11th reply and fail to add anything of substance that is novel, then you are merely repeating the previous replies in the thread and thereby not contributing to the discussion. Thus, insubstantial quality - multiple posts of this kind in quick succession would likely be considered "burst posting".