you definitely want to read the manpage. Noting:

BUGS
     Essential lines ``atabus* at ata?'', ``atapibus* at atapi?'', and
     ``scsibus* at scsi?'' are removed as they aren't listed in dmesg(8) out-
     put.

Also, If your 213 assorted USB devices are not live, its going to strip
the ones you haven't got plugged in when you run. That removes a lot of
functional stuff from a laptop config.

However, it showed me a heap of stuff I can remove. I'd say this tool
is one that you use to hand craft an outcome.

-George