Well for sure you can have a look that after Coolwave got exposed, few days later massive amounts of accounts were made and were used for the accelaration, and all of them wanted you to 'tip' them for doing their shit work.
I don't think its that hard if we have a sticky in services for these accelerators. I would think that its best of you to decide which one you want to use and how much you'd like to pay for it.