On Sincerity

Well, on sincerity and the public forum. because, i'm supposed to let you in, to an interesting and believable extent, but not so much that you know all i know. if we knew all that each other knew, we'd never speak again. eh?
as with the survey, it IS pretty stupid. but the point of it (which is relevent, i think) is that everyone has input on who a certain person is dating (or has dated). i mean, it's probably the main thing talked about between friends when the relationship is happening. however, the opinions are only welcome on a one-to-one basis. i've had many people say "oh, i like this person better than that person..." but put it to a public forum and it seems quite shitty and insincere and just plain fucking weird (hence the last voting option).
so my questions: are blogs just for banter? maybe to make us laugh or feel better 'bout ourselves? when disclosing personal information, does it have to be positive and discrete? i guess the weblog (as has been studied a lot as of recent) is a front, a face we put on, an extention of personality. and if it's to everyone out there, it tends to be edited towards the best we can put out. i guess the poll was just a notice of that. the barrier between personal and public. i tend to prefer the personal (obviously), but resort to public often. the fall wind, i guess.