So for example using your counselling one as an example.
As it is currently on the first page I will move it probably to MH say. Once the active threads are done I will then block move all posts to one forum.
So for moving forward as most will be on SI I will move them to the Self Harm forum. If your counselling thread was on page 3 it would end up there.
If you wanted to bump it it wouldn't really be appropriate in SH so at the point of bumping just PR the post and we would move it to MH. If however you would never bump it again than it may as well stay in SH.
PRing anything now is a tad pointless as the move hasn't happened and will only increase the mods workload!!
Is that clear?