You actually tried to help forum members (real ones) to improve their English skills.
However, there are two important factors should be taken into deeply considerations at first:

1) The forum has been designed for written-discussions. Therefore, it seems that you have had wrong approach to solve the problems. It is good for English learners in general, but is not really relevant to the forum.

2) Shitty posters will don't care about your efforts. Personally, real users don't contribute to the endemic of shitty threads in the forum. At least, their proportional contributions are much lower than shitty posters, account farmers, for sure.