I read some replies, and they are really exciting hehe.
Well, overall the topics mentioned above are really worth reading [...] I know they are off-topic but worth discussing.
I have hard times trying to understand if you are trolling or simply trying to fill your campaign quota.
Either he did not understand it well because of the language barrier. Or maybe he did not read the entire OP or other comments before he replied. Even though you listed the most ridiculous topics that should not be supposed to be in this forum, he thought the topics were funny and worth discussing.
If I share my honest opinion, anything should be discussable in the off-topic board if it does not fit in any other sub-forum category. But the board encouraging spam as well. So, as LoyceV suggested, posting on an off-topic board should not count the posts and should not increase the activity. But I think it will create a mess in calculating posts as well.