I'm not saying you can spam 25 posts I am simply saying what Perenium said, it's extremely easy to get your post count to that. Look at the BST I watch it every day several times a day and I'm sure you do too. Personally I think more then 25 should be required but what does that matter

. 25 Threads created.
There are definitely a handful of users with a really low post count IMO who don't use the forums for much else then the BST. I'm not saying they spammed their way to 25 and didn't make a single post, they just don't really post much else.... so effectively the low 25 requirement isn't stopping anything.
*edit* LOL as soon as I made above post I checked BST. There is an american user with 25 single sentence posts, not a single thread created selling stuff with a 26 post count. PROOF.