If I ran a sponsor program, affiliates would probably find my pubic hair on their checks because I'd rub them all over my nuts before I stuff them into their envelopes out of pure frustration. I'd make sure the payouts were pretty tight, though.
Having said that, as long as you're still being paid on time and what you're owed, and you have certain fail-safes in place just in case you need to quickly pull all your links, then it shouldn't really matter.
Then again, I don't promote EpicCash, and it would probably only take one bad experience akin to what Tempest proposed for me to reverse my opinion.
