Get where you're coming from but if you look at the vast majority of other sources on underground here who do reimburse, most people still don't test.You say a small amount, but how much does it cost to test something? Jeeze, if I can get a reimbursement for testing, I would probably do it also. You may be right only a small amount gets it tested. Then again, you may be wrong. We don't know how much they are selling.
And it's going to take a lot of sales to recoup a $130 reimbursement. Remember, only a slim amount of what they are charging you for an item is profit.
Personally I like one low price, not all these gimmicks, and sales, and other things to fool customers. I'm just worried if they offer reimbursement for testing, it will end up raising prices.
Why? Because tests were done previously (and reimbursed!) and source quality was established. If the source consistently tests well there's less reason to test, so fewer people will test.
Think of it as a trust building exercise.