sundaridevi - 6:04 pm on Sep 18, 2012 (gmt 0)
Google have discounted the authority sent by poor links due to the fact that they may have been brought / paid for, will this transfer to the authority gained via social media?
I think it's pretty easy for Google to count links from Facebook as links from an authority site. By the same token it should be relatively easy to discount links from "spammer" profiles that "go Beyond the Pale" (in Penguin terminology) in liking/sharing large numbers of sites. Twitter is more problematic, I've seen SERPs downgrades happen at the same time I have tweeted my own site around the clock and doing so for 14+ days in a row has been concurrent with a short term -100 penalty. Don't care, for obvious reasons, to make a scientific test of this.
Here's another one. Have you ever watched account after account start following you on Twitter and then all of a sudden all those accounts are deleted in one swoop? Twitter is not sleeping on the job, either.
Couldn't this be the recommended practice of following lots of people when you set up your account, in order to get them to follow you, then deleting the follows who haven't followed you after x days? Many, many Twitter how-tos recommend this. Twitter is good as well at banning accounts that go "beyond the pale" with this practice. But I think we are talking something like 200+ follows in a day.