Yeah, it seems that BGA still doesn't understand the biggest issue with their power-leveling gimmick. It distorts (penalizes) the ELO of people who are strong and active, in pretty much every game, except for those with a massive player base. This new tweak where the lower ranked player won't lose ELO if playing a stronger player that they've lost to several times fixes the obvious issue of overall ELO decay for both players for being active, but of course it opens up a new incentive for lower ranked players to try to match with strong players with zero risk. If they lose, they lose 0 ELO, if they win, they get 100% of the ELO (so they are playing with free money after 5 losses), and it's the opposite for the strong players - they can only lose. This could be justifiable if you are playing the same player with no other players in between (to cut down on point farming from a secondary account in a single session), but the fact that you can play 10 other players in between and still get this penalty is just terrible (especially in arena, with unknown opponents).
Here's an idea - if they really want to try to indicate potential cheaters, for anyone in the top 10 of a game, they could indicate what percentage of their games are against their most frequent opponent. When compared with others in the list, that could give an indication if that person is farming from a secondary account, especially if it's their more recent games that are against that account.
At any rate, the new ELO rules make ELO significantly worse at knowing a person's true strength, which should be the principal goal of a rating system... Otherwise, we have to come back to assume that the true goal is what the new system actually does - discourages active players from playing to reduce server load.
Here's an idea - if they really want to try to indicate potential cheaters, for anyone in the top 10 of a game, they could indicate what percentage of their games are against their most frequent opponent. When compared with others in the list, that could give an indication if that person is farming from a secondary account, especially if it's their more recent games that are against that account.
At any rate, the new ELO rules make ELO significantly worse at knowing a person's true strength, which should be the principal goal of a rating system... Otherwise, we have to come back to assume that the true goal is what the new system actually does - discourages active players from playing to reduce server load.