Being harassed for feedback is annoying I agree. What really annoys me is that ebay hound me to put feedback as 'it's what ebay is all about' and 'it provides invaluable help to customers/buyers.' Yet on the 8 or 9 occasions I have put a NEGATIVE, they have deleted it. Every single time. After the last time I put a (well deserved) negative, and they deleted it, I decided they would get no more feedback from me - ever. Don't hound me for feedback, and then delete it when it's negative, because the seller has thrown their toys out of their pram and stamped their feet.
See also: being harassed to do surveys. Loads of companies do this. eg; Barclays/Barclaycard. Paypal, various storecards, and Argos card ... Argos card had a spate of sending me surveys about once a month. There'd be about 40 questions. And I'd answer, say, question 1, and then there'd be sub-questions. So 1A, 1B, 1C, 1D and 1E. So I'd answer 1A, then it'd say, why have you given this answer?
When I tried to answer it would drop down again and say 'please tell us how we could improve.' 'Please tell us what you particularly liked about this.' 'Please tell us what you'd recommend.' And I'm still on question 1 - subquestion 1A at this point.
I got to about question 8 on the survey once. 24-25 minutes in so far, and just bailed. It was ridiculous! And Argos card aren't the only ones that do this! Some people get paid lots of money for doing surveys, and here am I spending nearly half an hour of my life on barely a fifth of the survey and getting paid nothing for it. jog on!