*** John Goerzen [2021-08-20 14:19]:
>most of those are .seen files that stick around for reasons I understand

Well, seems nothing prevents moving all of them to subdirectory.
{rx,tx}/seen/HASH instead of {rx,tx}/HASH.seen. The same applies
to everything else. Trivial little complication, that will definitely
help with many .seen-files. Would do it! I really did not think about
directory size before.

-- 
Sergey Matveev (http://www.stargrave.org/)
OpenPGP: CF60 E89A 5923 1E76 E263  6422 AE1A 8109 E498 57EF