As stated before... everyone should be free to express his opinion about another member if it's not offending... sometimes this isn't very easy for some of us... we have to keep in mind that a lot of us aren't native english speakers and have some language problems...
If all of you have to post in your second or third language you learned for some years in school, i'm sure some troubles are only based on the language problem... same could be by using the word "scam" it could have different meanings to the ones using it...
I don't see a problem if a customer isn't happy with what he gets for his money... we all expect different things... a good friend of you can recommend you an restaurant... he really likes it there and think it's the money worth while you don't like the style the cook is preparing the food and so on... i'm sure a thrid friend of yours like to hear both opinions...
I think if someone has another opinion it all should be discussed in a rational way so all parties profit from it...
I would suggest that in future the moddders and guys offering similar service make a pic before and after modding the watch so the customer could see the results... (it wouldn't take too much time) if a customer isn't happy with the work and the modder things this is ok... both pics before and after should be sent to an expert assessment... which could judge is the work is done properly or not... i would nominate all well known modders into this jury (40% of the whole jury), some of the members here with the most knowledge and best eye for the moddings (40%), and some members which are designated by lot of the whole community (20%)...
All members in the jury doing it out of free will the ones elected only for a month... i'm sure we could make something like our admin-section so these members could have an private room to make their decissions...
The call for the jury should be an exception... and done by one of the involved persons...