Outer Vinyl Sleeves, is it a good idea?

Years ago I was schooled to remove outer coverings of any kind because they can result in mold on the vinyl.  So I just have always removed them.  Some people think this is silly, but recently I acquired an estate collection of about 8,000 records, all ostensibly housed in an AC storage facility.  Somewhere around 40+% of these records are moldy.  So even though not having outer sleeves does result in ring wear damage, for me the vinyl itself is far more important, therefore, I argue to not use outer sleeves.

I use them to protect the album cover. No problems with mold, but we have heat on for half the year and it's blazing hot the other half.

Here is a trick worth every penny.

Every 2 thousand plus albums of mine are fitted in outer sleeves to protect the covers. The trick is to slide the covers into the outer sleeves OPEN END FIRST. It does two things, allows easy reading of the edge since there is no plastic covering it and it makes it much harder for any dust to penetrate the vinyl since the open end is deep inside the outer sleeve.

I don't know of anyone else doing it. I  should have a patent. But you guys get it free of charge right here. Try it, you'll love it.