I never knew such people could get jobs where they work with computers.

Most of the people in question are patrons; they may or may not use computers at work (about 50% I estimate), but those who do mostly only use them at work for highly field-specific applications.

Is there no computer education there?

I don't have much trouble with people who are still in school; we're mostly talking about adults here, especially from about age 35 up. The library (where I work) pretty much *is* their source of education. The ones who have kids at home and _get along with them_ can learn computers from their kids, of course, but that doesn't cover everyone. My view of the community's education level is probably slanted a bit since people who already understand computers don't feel the need to come to the library for help with them, but it remains true that when there's a problem with one of the library's web thingies, I invariably hear about it from somebody with a very poor understanding of computers and a fundamental inability to remember the exact words of an error message unless it's very short and nontechnical.

Please do not let your software be distributed outside your (hopefully small) post-it scribbling community.

This is mostly custom web stuff I'm talking about, but due to the nature of the website (small public library), almost all users are local to the community. No, I don't put this sort of error messages in modules intended for the CPAN.

I fear very much that I ever get a pickled error message.

Now you're just being silly.