What I don’t like is the emotional blackmail like when they’ve taken you out at a conference or something and they say ‘but we were so close, don’t you remember when I did X for you and went out of my way to do Y, did that mean nothing?’. Well that was before your program no longer suited the needs of the site.
I would never give my phone number to any program, though despite this I was amazingly impressed and annoyed that my parents in another country got a phonecall from CPAYS!!