i don't see anything rather wrong with it. it doesn't affect your privacy, nor does it hurt you.
it just scans for things, and plugs some ads. who cares? it doesn't build up any huge database, that gets sold to adsystems, or anything. it's just processing it to add some html. nothing really big. as i said, that happens everywhere.
i do understsand the issues. but in this case, it's really just an algorithm. and a database, that gets feed by the mere statistics. not statistics about YOU, just statistics about the whole system.