Well taking about a free forum software no I think you will not make much as most people take the free forum software and then want everything free and support by yesterday
Yup, never mind that people are volunteers doing stuff in their free time, and that folks have sunk thousands of hours of their free time into making this, I WANT MY FREE SHIT, DAMMIT.
:niark: It actually really pisses me off. I don't mind particularly that I made dozens of mods for SMF, I don't even mind that I didn't get much in the way of thanks, but I did mind the amount of people who seemed to be under the impression that they had any right to do anything other than ask me if I'd add things or change things, as opposed to expect, demand or in one hilarious case, threaten me with a DDOS in order to make him what he wanted.
It doesn't help that while there are three (AFAIK) paid theme sites for SMF, each with a decent amount of reputation that they've legitimately earned, there are three paid mod sites, of which only one could justifiably claim to have good standing, the other two are clearly out for whatever they can get, including buying up other mods and taking over other mods just so they can promote the crap out of their own paid stuff.
I will say, though, I had an interesting discussion with vbgamer once on the subject, in particular reference to the ad management mod after he'd bought it. The mod's free (branding notwithstanding) and because it wasn't using template layers and so on, it did a number of core template edits. Needless to say: support nightmare. So he started offering a paid service to install it, $15 a time.
I don't have a problem with that. The thing is free, and if you aren't using the default theme, you can install it yourself with fairly minimal effort. But if you want someone to do it for you, it's only fair that you should pay them the time to do it.
And yet, he was annoyed - and I agreed with him about it - at the number of people who didn't want to pay the $15 for him to do, but also didn't want to do it themselves.
One other little anecdote. I once talked about doing the vBookie mod for SMF. It's a simple enough project, really, but it would have required template edits to do properly, and would be big even if it was pretty simple. So I talked about the fact that I didn't want to do it for free, and that I thought $25 was a reasonable fee for it plus a year's support, or an extra $15 on top for me doing the installation for you. Cue a surprising amount of nasty feedback - I was genuinely surprised at the volume and ferocity of some of the messages, even though I thought it was quite reasonable.
So, I then said, fine, I'll look at doing it for free, but for 2.0 only to make *my* life easier, and look at maybe charging for support because of the complexity of it. Even that triggered a surprising amount of crap, though not nearly as much as before. People just do not want to pay for stuff, generally speaking, for a free platform.
What it comes down to is investment in the platform. We have a rather irrational take on sunk costs, that we'll often spend over the odds not to have wasted the initial sunk costs, such that when you spend upwards of $200 to get into the platform in the first place, you're prepared to spend a bit more on add-ons for it, even if you could actually achieve everything you wanted with another platform.