I see it rarely, but almost exclusively in games that feature exponential growth, like mobile idle games. Growth is so explosive that you typically entirely ignore the actual numbers, and you measure progress via orders of magnitude (i.e. my currency/second in the game is 5.6*10^47, I'd just call it 47).
The repeating k scale is better than m, b, t, etc because it still preserves a sense of scale. 2m does not look 1/1000000th the size of 2t. 2kk does look a lot smaller than 2kkkk. You can also still easily convert to real number by substituting each k with 3 0s.
And lastly, I don't know the letters going all the way up to 10^47th. That's nearly enough to wrap the alphabet twice, and it's not even that high for that style of game.
The scale is fine, it's just the letter that's unfortunate. M is the Roman Numeral for 1,000; they could just use that. The worst thing I can associate with any number of M's is someone enjoying their food entirely too much once you hit like 7 of them.
The repeating k scale is better than m, b, t, etc because it still preserves a sense of scale. 2m does not look 1/1000000th the size of 2t. 2kk does look a lot smaller than 2kkkk. You can also still easily convert to real number by substituting each k with 3 0s.
And lastly, I don't know the letters going all the way up to 10^47th. That's nearly enough to wrap the alphabet twice, and it's not even that high for that style of game.
The scale is fine, it's just the letter that's unfortunate. M is the Roman Numeral for 1,000; they could just use that. The worst thing I can associate with any number of M's is someone enjoying their food entirely too much once you hit like 7 of them.