The flag is not inherently evil...I think of it as a downvote instead. I don't know about whether or not the system promoted is or isn't a Ponzi, so I'd be inclined just to ignore it. Good luck with your decision.

As someone who hangs out in the mining subsection often...  a significant portion of the content are all affiliate link related (whether its a Ponzi scheme or not) and its quite frustrating to not hit the flag button...  *Consider carefully about voicing your concerns politely in a reply, with some references.*  I recently had an interaction of the sort with respect to some posted reports of profit from some BTC/realestate thing (see my reply history if you're interested) - and upon preparing this reply, I went to go look at it, the original post was flagged and hidden, whether the information and concerns I presented were an influence on this, I cannot be certain.  And the arguments about downvoting, animosity caused, and censorship are quite complex it seems,  and as to my feelings about affiliate programs in general are not necessarily the most pertinent for this particular thread (do discuss any further) - so I'll leave them out :3.

With that said, I'm still an ultra nub on Steemit - but from my observation/reading  the general population appears to generally be not to into it.  However, remember that it takes people to go against the grain (or at least talk about it for thing to change sometimes).  

P.S.  That was a giant run on sentence there amoungst a whole bunch of other things :3, sorry!