There are some discussions on this in the archives, but none since the 2018 update.
But I am still confused sometimes by inconsistencies:
We use “OAK” for おく in “to send”: 送る （おくる）
OKLAHOMA for おく in 屋 (on’yomi = おく) in Rooftop
OKLAHOMA for おく in 億
Why not use OAK or OKLAHOMA for all?
There may be others, since I am only at level 11.
Is there some way to report / note these somewhere for possible update?
Also, still haven’t figured out how to access the community generated mnemonics
But I still love WK!