I don't think we were suggesting there was an official limit, but rather a number which suggests avarice. I would suggest 5/6 to pack for later exceeds that number. (Putting aside you may be emptying the contents of the basket for other passengers who are less greedy.)

The snacks are there for you to eat on the plane. Taking 1 or 2 and if you're not hungry, packing for later, sure. But 5 or 6 with the intention of stocking your pantry is greed. It's no different than taking Tupperware into the Admirals Club or an all you can eat buffet.

If you're actually hungry, though, I don't think there's a problem in asking for more snacks.