In my opinion, this is another big move by Flippa to eat into the margins of the turnkey sellers. Where before, you could dump the success fee on the buyer, you now have to pay it yourself.
If you're selling a site for $XXXX+ this usually isn't an issue, but for small/new sites around the $150 mark this is another 5% off your margins that will definitely add up.
This is a great move from the perspective of buyers, but is also good for those of us who sell sites in the $XX,XXX range as it will reduce the number of competitors who are squeezed out the market due to a narrowing profit margin.
Definitely another step in the right direction for Flippa and it's likely to bring more serious buyers and sellers onto Flippa as the quality of sites naturally increases (in proportion to turnkey sites).