[CheckMyVitals]

focusfanatics has a good system as mentioned. the transactions are recorded, and integrated into the userid there is a buy/sell rating. just counts how many transactions have been made, no +/-. leaving the comments anonymous will only lead to people posting crap. if you're going to leave a bad rating, be prepared to stand behind it. i think that'll cure the 'what if i do a good transaction and the person's a bitch' worry. also leaving space for yourself, or others to reply to the negative comment will help. all in all... not anything i've worried about... but good idea none the less