An anonymous reader writes: Yahoo News: Jimmy Wales have blocked public-relations firms, campaign workers and anyone else perceived as having a conflict of interest from posting fluff or slanting entries. So paying for Wikipedia copy is considered a definite no-no. Microsoft Corp. landed in the Wikipedia doghouse Tuesday after it offered to pay a blogger to change technical articles on the community-produced Web encyclopedia site. Microsoft isn't the first to be blocked; after a some wrangling user MyWikiBiz was banned. Now the list of banned users is growing, has Wikipedida painted it's self into a corner — should the ban also apply to paid resarchers?