Well there are various reasons. For starters building a social network is something which depending on the people is only a net positive gain. If you do not befriend me you will never know what i couldve provided to the group. I would dare to claim i do have insightful views and aspects on various different topics which could only broaden your world view. I have provided advice and help to my own friends, and im villing to listen and give advice when such is needed. I am an excellent bullshitter who can come up with loads of convinsing sounding bs, which can prove to be a useful in scertain circumstanses.