I have not been on ebay for long but i have done quite alot i have opened a shop and gained abit of very positive feedback. But the thing about feedback is you should always look at it before you buy anything.
I have good feedback but i have a neutral which may put some people off intill they read it and all it says is prase about me.
Some people dont know alot about feedback so they leave sellers misleading feedback.
I buy off any ebayer aslong as they have atleast 5 postive feedback and if they have negitive i make sure i read it to make up my own mind.
Also some people get negatives for reasons that are personal so that item that didnt get depatched for 3 weeks was a one off.
I also bought of people who have had negatives because other people didnt get there item well its not the sellers fault that royal mail lost it but i would advise any buying to buy of someone who keeps proof of postage or ask before you bid.
Hope this helps have fun reading peoples feedback good and bad.