Calling potential investors a "waste of time" just because they didn't invest or grant you further connections is a little harsh.
Its just like saying all the girls you hit on that simply weren't attracted to you were all "wasting your time", and you make some fancy graphs on the ones that do sleep with you in big green circles.
It makes you look like a pick up artist trying to find the best way to score a girl and make everyone else look bad.
Thanks for your comment! :) StartupList are close to AngelList in design, yet we have a yin/yang relationship. They cater to investors, StartupList caters to early adopters and startups.