>FFS isn't a journaling filesystem so any 'wear', even on primitive >flash storage, won't be enough to worry about.
I disagree, depending on a few variables. If you can't get a better device then be prepared to replace the storage or count writes and create new files, keeping the old. KARL and randomness development depends on writing and shouldn't be disabled. There is a lot of misinformation about flash out there from fairly respectable people too. Maybe because phones are also in the close our eyes and hope brigade.
