A couple of things. First, why are some people saying this change will kill off co-op trading? Based on the screenshot, it looks like the frags per level will be:
1x for Level 25+
1-2x for Level 35+
2x for Level 45+
2-3x for Level 55+
3x for Level 70+
3-4x for Level 85+
Even if you get the max 4 frags per try at level 85, you will need to do the raid a minimum of two times to max out. Realistically you will need to do it at least 3 times most days to max out though, if you don’t get the max 4x each try. I think this is an issue in and of itself. So, not only are our frags going from 12 per day (or more with resets) to 8 max, it will usually take 3 trades to hit that 8 max for the new hero. Of course this is just an educated guess since we don’t know the number of frags you get at levels 70 and 85. It might be a guaranteed 4 at 85.
I have to agree with others that changing the max to 10 at level 85 would be a much better direction. That’s still 2 less per day than you get now when you do a trade, but it’s the same as it was at level 70. You also get the bonus frags for other heroes. It seems like a good compromise.
The other issue I see is with the bucks exchange. It seems to be overshadowed by the hero frags. The problem wasn’t only with the increased gold cost per use, it was the high gold cost for the low amount of cash back even on the first use. You just don’t get much cash for 10 gold at level 85. 10 gold for 76k cash is terrible. That’s basically 10 gold to get 1.5 skills leveled up past level 70. At level 55 you get 52k gold… so in 30 levels it only increase 24k gold. Meanwhile a level 55 skill cost 32k gold to upgrade vs 62k gold at level 85. That means the increased cash you get from level 55 to 85 isn’t even enough to cover the increased cost of ONE skill point. The cash received just didn’t scale well at all.
The gold change was a step in the right direction, but I really think the chances of hitting 2x, 5x, and 10x needed to be increased, or the overall cash from each exchange needed to at lest be doubled or tripled. That way it would at least help people get an extra few skills paid for per day.