Oh gee. If you are actually worried about such things, you'll
likely not be wanting to use the development series kernels.
But failing that, comment out the message yourself.
For the rest of us, perhaps having those things show up when
running e.g. tcsh will get someone annoyed enough that they'll
fix the application.
That's the reason we've left the "unaligned access" messages
enabled on the Alpha, anyway. ;-)
r~