Are there any mistakes you made or bad advice you have taken that by sharing would help others learn.
I do not get what you really mean. 1-Traffic is very important for your website. If you do not have any traffic, then you cannot make money. 2-I think you should never know your visitors, because Google will ban you, if your known people click on your ads. 3-If you have a real traffic from search engine, then you are in a good way and you can never be banned by Google.
I've been a little worried about that. I mean...I post a link up to new comics that I put up, and I know people from those forums...but i've never stated anywhere that they should click those ads. and my .33% CTR should be proof of that lol.
I used to display adsense ads on blog with google trademarks in domain. They told me too change domain and now I've no problems
My worst experience with Adsense was having to wait a few months to recieve the PIN and not knowing whether it would turn up or not. A bad mistake I made was closing my Adsense account thinking that because i'd sold my websites and didn't plan on making any more I wouldn't need it, then a month or so later trying to open a new one after making a new site and it taking ages to be approved.