I agree with this.
I'm starting to not trust anybody. Whether that is a good thing or a bad thing is up for debate.
Well, so long as you don't let it hold you back in life too much.
Part of my reason for not having really strong bonds in my life is that I've constantly moved as a kid, so I never really learnt how to maintain a friendship, but overtime definitely realized the self-serving nature of people.
But if you live life with a passionate hatred for people, and you block them out of your sphere, you won't be better for it.
What I do is present myself as "real" as I can. There is no pretence to my personality, I'm overly honest, and I can't stand too face people, in fact I can smell then from a mile away.
If people are beyond the ********, straight up with me, I'll be straight up with them, and the friendship goes from there. But gossipers, liars, and that kind of person knows to not bother with me with their fake b.s.
This really doesn't work to my advantage with girls though, but for the last two years I found one that can handle my overt personality, and she's a sweetheart.