I don't mind the cold e-mail pitches from other startups, though I've never sent one myself. I've found lots of interesting and useful services that way. I keep

I don't mind the cold e-mail pitches from other startups, though I've never sent one myself. I've found lots of interesting and useful services that way. I keep my e-mail in my public HN profile and encourage people to use it. The only thing that bothers me are sales people that follow up on those mails every few weeks forever until you reply to them.