seems like an obvious attempt to gain some green trust himself.
How so?
I have seen numerous times where people where selling techniques or other stuff, where said good was provided for free to a DT to assess it. Can't find the thread again right now.
Some DT's did vouch for the digital good in question. This is no different.
There was also no trust feedback left.
Ah, just my skeptical nature getting the getting the better of me, I guess. I see your point, but I'm not 100% sure "there is no difference." In one case, a free sample of a product is offered, and in the other a bounty is offered for testing a service. Again, I see your argument and tend to agree in the big picture they are similar, and in most cased there wouldn't be anything nefarious in the offer.
However, to play devil's advocate I'll ask; what's an appropriate bounty? If one were to offer a bounty of 0.5
BTC for testing a service, how unbiased will the reviewer be? At what point does it start to look like something nefarious?