Or you could try a file system with compression, such as btrfs using zstd or something. Hopefully that spam bloat is compressible? Should help mitigate a bit the urge for replacing the hard drive.
It's definitely compressible. But don't expect much since,
1. I expect Ordinal user would use compressed file format to reduce TX fees.
2. File system with compression choose fast algorithm.
Well lzo is faster which is what i normally use. zstd can compress more but takes a little more writing, reading is very fast (intended for their datacenters, you know facebook etc). You can also change the compression level in the mount options.
ETF is explaining:
if an image was say 6mb and was compressed to get it down to 3mb to then put into a bitcoin block
its already using compression
meaning you then trying to compress something wont result in a 50% drop because its already in compressed format.. thus no gain
inshort
you cant compress a compression and keep compressing it