Have you been underwhelmed with support such that you haven't paid for the full version? I don't think anyone agrees with endless support, where each user gets to define the terms.
The whole point in free software and lets be under no illusions here, is to entice people to buy fuller, more comprehensive versions or to sell and promote other products by the same software designers.
The reason I have not bought the full version is for a very good reason. And we are digressing here - away from the original question but you put the question so... I do not need or desire the full MC. It offers me nothing over MJ. I would be stupid, or have more money that sense, to buy an application I do not currently need. I simply want something to play and organise music. and MJ does exactly that. I have no desire to watch films, TV nor can I see a time in the next couple of years where I will. It is my belief, however, that the future of all media lies within the digital domain only and user held hard copies of most entertainment medium will be consigned to history. That's the future but we are not there yet!
Yes I have assisted others, or tried to, because that's whet people do when they use and learn applications and wish to share the experience. The act of assistance or support should be an ethos and not a means to an end.
Yes, it is a noble thing to support the software and under certain circumstances I would do just that. Sadly, other needs command the use of my income, such as that is.. Several enforced redundancies (for both myself and the missus) and the setting up of a new, far from lucrative business (a labour of love) means that purchasing software comes very low down the list of priorities - after food for example.