It looks like this board is getting its share of irrelevant posts but there is something you can do about it.
First, open the post (DON’T click on any of the hotlinks in it) and click on the little box in the top right corner. This will allow you to report it. No, I don’t know where the report goes.
Secondly, click on the posters name. This will allow you to add the sender to your friends or foe list. The choice is yours.
It’s not much but every little bit may help.