Gus didn't think the deal was in his interests. Good for him not taking it.
Jason thought the deal was in his interests. Good for him too.
The rest is nobody's business but the people who decided for themselves.
Those people some folks are calling "their community" are also in many cases their competitors. Particularly in Gus' case, DEVONthink Personal competes with VoodooPad for some purposes. Gus' blanket criticisms of the promotion as bad for "the community" have a slightly different flavor when you think about it that way.
If Gus is right, DEVON have bought themselves more trouble in support costs than they'll benefit from the promotion and he can sit back and enjoy the benefits of stable, sustainable growth while his competitor struggles under the burden of an ill-advised business decision. It could work out very well for Gus. On the off chance he's not right, his competitor has gained it looks like somewhere in the neighborhood of ten thousand new customers who may not consider VoodooPad now because they've already got DEVONthink meeting their document organization needs.
For context, I'm a happy, paying VoodooPad Pro user. I really don't want to pick on Gus particularly, but he's got a vested interest here where Gruber is just foaming at the mouth. I really don't see anyone complaining about Gus offering a "Lite" version of VoodooPad for flat nothing. Doesn't this "devalue the community" and make people expect software for less than it takes to produce it? Why not? For cherrypop, who noted that "developers can create promotions, too," well, yes. That's exactly what VoodooPad Lite is, and it's probably one of the reasons Gus didn't feel like he needed to participate in the promotion. He's technically taking a bath on every copy of his blood, sweat and tears given away to people who never end up buying a paid version. How would it sound if some rep from DEVON popped up and complained that Flying Meat should stop giving away software for free "for the good of the community?"
Bottom line, your business choices are your own business. If someone else's choices buy them trouble, then it's their trouble and they earned it. One man's mistake can be another man's fortune in business, and those who assume any particular decision is one or the other run the risk of looking fairly foolish when the numbers are in.