Some people feel that since they're creating these items on their own time, and paying money to give those items away (hosting and bandwidth), it's annoying that people would try to profit off their generosity.

It's far better for people to miss a freebie that was mismarked as non-commercial only rather than members of the community leave because they feel they've been taken advantage of. As well, we have fan art freebies - super hero character textures and such. These can not be used commercially without the creator's permission. If someone forgot to tag them appropriately, then there could be legal problems down the road.

As a courtesy, and to head off possible legal complications, it's better for us to keep the default of "non-commercial use only" but I am trying to get better definitions for usage.

Cheers!