Even when you buy pellets, the last 5 lbs in the bag are 'crumbles' or dust anyways, I don't want to waste that. Dust gets spewed all over the ground and lost. By wetting it, I can kind of dough ball it, and even though they still throw it all over, its overall easier for them to eat later and not so much loss on it.
Speaking of, this week was their once every month or so DE feeding, they don't like it much but eat it. I sprinkle about quarter cup of DE on 5 lbs or so of feed, mix it well and have em eat it. Now you will get a lot of people saying it's good for worming, and a lot of others saying it's useless, and you will also get those who will say it's good one week, then two weeks later, say it's useless

It seems to work for me, and they are healthy so I do it. Same with putting a few tablespoons of ACV in their drinking water for health.
What I found, it's a bit more expensive but was well worth it. I make a lot of pepper sauces and salsas etc. People whined that there were seeds in it, (grow a set you whiny little ...) anyways I got one of those ice crushing blenders, and it ate right through the seeds and all. If you are finding your blender is struggling, that is an investment that can be used for many things, including for YOU. A bit less expensive may be one of those health bullets.
Just some food for thought
Aaron