The argument for paying is mostly remixers who can use OCR blogs as a portal to their music. Wips, remixes, originals and CD Releases can all earn from being mentioned in an OCR Remixer blog.
Personally I think OCR should implement blogs. paid or not. And I also think it's more suitable that remixers (perferably posted) will have access to blogs on OCR because they are, as I said, the ones that would gain something on using a blog on OCR instead of say.. wordpress.
ALSO, if you don't want to blog. don't pay and you don't have to It's not like paid ocr blogs will bring the community down and ruin it for everyone O.o (NOT that you said so, but you know)
Just my thoughts