Conditional
I've been looking at porn since the first month I logged onto a BBS at 2400 baud sometime in the early 1990s. I remember waiting literally minutes for a single image to download, and using an app/protocol (the name of which escapes me now) which displayed the image as it was downloading, slowly displaying scan line by scan line. I remember the thrill and excitement of it. I was age 14, well under the age at which one is legally allowed to view such material. And yet, I remain unharmed. I have never raised my hand in anger at anyone, have never been involved in any altercation, have never had any problems with crime, and have never viewed women in any demeaning or degrading way. And I'm sure I'm not alone; I'm sure many of you have similar backgrounds.
In the United States, the "moral" "majority" has so much power and influence that flashing a nipple for half a second on a television broadcast results in hundreds of thousands of dollars in fines, which today (given the incredible increase in the maximum fine allowed by the FCC) would be multi-million-dollar fines. All because of a nipple, the same thing we all started life sucking on. It's sadly amusing that overweight men with large breasts are allowed to proudly display their hefty breasts, and yet a flat-chested woman is not allowed to. So it doesn't even have anything to do with the size of the breasts. So what is it? Why are a woman's breasts so much dangerous to society than a man's breasts? Why is it that in some European nations, people don't have a problem with women baring their breasts? And why is it that in those places, breasts are not stigmatized and objectified the way they are here in the United States? Anybody who can answer those questions already has the answer; anybody who cannot answer those questions refuses to listen to the answer.
However, as much as I know that nudity, sex, and porn are not the evil scourge the "moral police" claim they are, I do believe that communities have the right to decide what should be allowed in their communities. I'll repeat that. Communities, not out-of-touch politicians without input from said communities, have the right to decide what should be allowed in their communities. And so, if they want to install content filters on the library computers, I would wholeheartedly support it, conditional on the following (in this order):
1. Hold a community (city/county) vote, asking if the community feels content-filtering is necessary. Only proceed if the majority (more than 50%) of those voting vote yes to content-filtering.
2. Explicitly define what is to be filtered out. Vague, ambiguous, and relative terms such as "pornography" and "obscenity" are not acceptable; provide an explicit definition of all terms so that anybody reading the list can accurately identify what is to be filtered out, without having to guess, and without having to rely on their own personal beliefs or morals to fill in the blanks. Since this is supposed to reflect the standards of the community, ask for (and implement) the suggestions of the community as to what they feel should be filtered out.
3. Find (or create) a content filter, either hardware or software, that rigidly adhered to the above-mentioned definitions only.
4. Allow the source of the content filter to be reviewed by any person or organization who wishes to do so, at their own (reasonable) expensive and without having to sign a Non-Disclosure Agreement, and allow a method (SHA-1, MD5, etc) for the binary to be verified against the source (to prove that that the binary is, in fact, built from the provided source).
5. Allow individuals, organizations, and website agents (owners, administrators, and tech support) to inform the content-filter administrator of false-positives and provide a reasonable method to quickly remove the false-positive sites from the filter.
6. Provide an escalation route for the individuals, organizations, and website agents mentioned above if the content-filter administrator fails to remove a false-positive site from the filter (this step is to prevent the content-filter administrator from substituting his/her own sense of morality for that of the community).
7. Make it absolutely clear (by using visual signs and/or indicators) that the computers are implementing content-filtering).
There are probably a number of things I forgot, but this would be a good start.