I wonder, hasn't the damage already been done?
unfollowing people is just "another message" that will queue up to be received after all the "follow messages" are received. so until someone new connecting to Sebastian downloads all these new unfollow messages they might already start downloading contact messages, etc.
It's quite an achievement however that you managed to follow twice as many people as my pub did back in the day.
I agree with many of the people above and forking out, what is the use of following so many people. it's not really manageable anymore, your feeds must be flooding and the only advantage would really be automated data mining of some sorts.
Following someone doesn't give you more spread in the network either, it just concentrates the network to you for you. So if you are doing this in an effort to be present for people that have questions about your SSB app, then that's not really how things work, it would require lots of people to follow you to give you reach instead of the other way around.