I couldn't really care less about the argument Peregrine and Tiraelina have been having in this thread....I can see points from both sides but I think the real problem with the system is the double SP penalty...you have the class SP threshold, and then you have the threshold for gathering items that the dev talked about in this thread...
I think a good solution would be to make it so that you can still get the SP/EXP for the items until regular thresholds sits in (by counting it as a success) but saying something like "The item is low quality and crumbles as you extract it!" That way you don't get the item but you get the EXP/SP, which means that it isn't such a pain to level a DoL class compared to DoW/DoM. (EDIT: Or if they just increased the SP/EXP gains from getting the materials that you reach the 15th threshold when you also reach the item cap....I think this wouldn't work as well, though, because you'd get a ton of SP/EXP per node . . . DoL would probably level up much faster than a DoW/DoM if it were like this, which isn't much of a problem since they can't do much besides gather but still is a bit weird).
From what I've done since Friday night (not much), it's easier to get gil from farming drops off monsters (such as marmot pelts in the low level areas) than it is to get gil from farming materials from DoL nodes...especially since you can easily vend drops from monsters for quick cash but you have to go through the trouble of selling your DoL drops through your retainer for the best money. Additionally, since the changes to the gathering system, it seems that it's harder to actually farm nodes with a good success rate (what I mean by that is that it's hard to get what material you want to from specific nodes, as least from what I've read). This results in DoW/DoM having an easier time making gil and leveling.
So ... overall I think I'd be happy if they allowed you to continue gaining SP/EXP without getting an item. I don't really care if I get less items from Mining as long as I can still level up for actually doing the work ... I think people who want the item cap to be removed are just being a bit petty and not realizing that there is a good reason for the cap being there (or several as it is).