I have no problem with the anonymous "I read this!" polls at the end of posts, because I've only ever seen them on fic. For me there's an enormous difference between "You might not have the time and/or energy to leave feedback right now, but would you at least indicate you read the fic?" and "You might not have the time and/or energy to comment on my post about [my cat having kittens, my sister joining the Army, my basement flooding], but would you at least indicate that you [agree with, support] me?" - the one feels like a bonus for me so I don't feel guilty for not commenting, the other would feel like an obligation to indicate agreement or to write a comment expressing my lack of agreement, lest it look like I was skipping the post, since "I didn't have time to write a comment" or "I didn't know what to say" wouldn't be plausible social fictions anymore.

I would be more okay with the increment-the-counter thingies if they had to be opt-in on a post-by-post (and comment-by-comment, I guess) basis; the clutter was never the issue for me, so I wouldn't mind a "9 people have [incremented the counter on] this comment" mention.