Should I worry about brew doctor warnings about macfuse and FUSE for OS X?

Should I worry about brew doctor warnings about macfuse and FUSE for OS X?

After installing Homebrew, I ran brew doctor (as suggested) and got the
following warnings:
$ brew doctor
Warning: Unbrewed dylibs were found in /usr/local/lib.
If you didn't put them there on purpose they could cause problems when
building Homebrew formulae, and may need to be deleted.
Unexpected dylibs:
/usr/local/lib/libmacfuse_i32.2.dylib
/usr/local/lib/libmacfuse_i64.2.dylib
/usr/local/lib/libosxfuse_i32.2.dylib
/usr/local/lib/libosxfuse_i64.2.dylib
Warning: Unbrewed .la files were found in /usr/local/lib.
If you didn't put them there on purpose they could cause problems when
building Homebrew formulae, and may need to be deleted.
Unexpected .la files:
/usr/local/lib/libosxfuse_i32.la
/usr/local/lib/libosxfuse_i64.la
Warning: Unbrewed .pc files were found in /usr/local/lib/pkgconfig.
If you didn't put them there on purpose they could cause problems when
building Homebrew formulae, and may need to be deleted.
Unexpected .pc files:
/usr/local/lib/pkgconfig/osxfuse.pc
It looks like it's warning me about FUSE for OS X and possibly macfuse.
Since I recall having problems installing and configuring FUSE (at least
until I found FUSE for OS X, which I recommend), I'm reluctant to mess
with it. Especially since Homebrew doesn't seem to have a formula for
FUSE:
$ brew search fuse
afuse diffuse ext4fuse fuse4x-kext
confuse ext2fuse fuse4x ifuse
Am I asking for trouble if I ignore the brew doctor warnings?