FWIW, in the name of transparency, Depone PM'ed me and asked for my thoughts and we agreed it'd be better to jot em in here, add to any discussion and whatnot. I think - judging by the very kind and liberal sprinkling of my name in the thread 
 
 
 - he's worried I might take offense or something. Couldn't be further from the truth. Based on what I have heard, having worked on his stuff, Depone's a pretty good engineer, takes his work seriously, and with work and application will have a bright future. The natural next step, as it seems he wants to make a living from it, is to get down in the trenches and start dealing with whatever it is people throw at you. Of course it makes sense to start taking anything and everything. 
That said, being totally frank, I find a number of things about the first post/'concept' disingenuous. Once you start expecting money from it - donations or whatever - you are stretching things a bit to say you're doing it for the community; at that point you're definitely doing it more for your own benefit. Call me old fashioned (and I am TOTALLY aware that I am being old fashioned here, it's just my opinion!), but improving people's sound for them in return for increasing your expertise and experience is both a fair trade and infinitely more 'pro-community', in principle at least. Expecting money too, well... isn't the fact it is helping build one's experience, skill and reputation payment enough? 
 
Similarly, what amounts to 'I'll do an x-track mix for a minimum donation of £15' reads as a bit cheeky. For example, I could say I'm offering my service on a donation basis. I'll master anyone's stuff for a minimum donation of 30 quid a track 

 I appreciate the approach you're trying to take, but if you are taking donations then almost by definition you get what you're given, what people feel it is worth and what they can afford. Depone's time is worth something; that something, to me, at this stage, is self-development. Priceless.
Then 
again, if you can get money for it and people are happy to pay, then you're already on the road to being a professional. So what do I know? 
 
It has to be said that I am acutely aware of my own bias here, as hard as I fight it. I went from being a paid professional (well, 75% pro) in mixing to nothing at all, and after a break writing stuff, subsequently started out again in mastering doing stuff for free, for anyone who would try me. I was doing that for 12-18 months (?) before I felt it wasn't taking the piss to ask for money. There were one or two occasions when people offered money (only one or two, haha), and I declined as I didn't feel I was 'there'. Depone's route may be different to mine, and to many others, but that doesn't necessarily make it wrong (that's a note to myself there).
Anyway, that's my two penneth. Above all, absolutely sincerest best wishes to a bloody nice chap. Who's to say that there can't be some sort of discount collaborative mix + master service between us someday..?