Can Facebook blocking information be used against us?

[Hanton82]

If you block somebody on Facebook, can (or better yet, is) that information used against you?

I could be wrong about this, but I created a second Facebook profile and befriended my main Facebook account. My main Facebook account is the only friend I had on my second profile. I know of several people that are blocking me on my main profile, and I found that those people showed up in the recommendation section of my second account. I don't know if this is because they are blocking me, or because I accidently ended up sending a friend request to somebody who is also friends with those people. Nevertheless though, this brings us to a good point. Is Facebook blocking information being fed back into the recommendations of the friends of those being blocked? Are the people blocking you being recommended as a friend to all of your friends?

Or in any way, can Facebook blocking information be used against us? In recommendations or advertisements? Can it be revealed to those developers with the right software? Can it be (or is it) used to build up support, via our own friends, for our enemies?

I always try to stay on the safe side and just not block anyone. I don't know what happens to that information, and I certainly don't want it to come back to haunt me. Can anybody shed some light on this topic?

[Darry]

Blocking people on facebook is useful if you dont want to be contacted by people you dont like. If someone has blocked you it would be rude to contact them with an alias account.