I don't know if anyone will read this from supercell, and hopefully whether they do or don't, they already do something like this anyway. I thought this out pretty well prior to posting this, though the image seems vague, it's meant to present an idea about potential loot solutions or rather identify where loot solutions are needed most.
My thought behind this pic is that Supercell should, if they are not already (using the mountains of data they've accumulated over the course of time), be analyzing deficiencies in any one of the main categories of how loot can be obtained.
I present this picture only as a simple visual guide in regards my thought on this. This is obviously by no means real data, but it is how (provided having the data as supercell does) I would go about identifying where the major declines are in resource availability to all players across their respective THs.
Regarding the image...
There are so many variables that come in to play. However, at the core of all things we obtain loot in the game any one of a few different ways. We collect from collectors, storages, league bonus, and war bonus. Aside from what we collect, we have daily expenditures in Gold, Elixir and Dark Elixir for the uses of upgrades and armies.
Medians (preferable to averages) should be available on active bases to identify what the median player uses in terms of costs per day vs loot gain per day. And then based on those numbers, and as i display in the visual example, one can identify red (bad), yellow (decent), green (good) as to which of those variables are hurting the overall player base and out of balance when compared to other TH medians.
So if for example (like the chart shows), the median gain from collectors was great for TH1 to TH7, but then we see a decline in the median gain at TH8 and TH9, and a very low gain from the median of TH10s, than the right thing to do to correct the problem would be to for example add a new level or another collector at TH8, 9 or 10, in order to bring the median gain for those THs up to par with the other THs. And all of this should be relative to the daily median expenditure of each TH Level.
Hopefully, someone understands these points i'm making, but truthfully i realize that it's up to supercell to identify those areas and increase based on the broken areas when compared across the board on different THs, in order to find balance across the board.