I also observed this one.  
Aside from locking useful and beneficial threads, the moderator on the local board [Philippines] also delete some helpful posts for the growth of the community (most of these posts are regarding the forum and not about bitcoin).

And with regards to the off-topic posts, local board [Philippines] does not have any sub-section hence there is no rule that forbids people from posting altcoins related posts, posts about the forum (usually found in Meta), and any other posts not related to Bitcoin.