I've given up writing free software since too many people want a free ride. Even after telling them "I have no interest in helping you fix your Linux installation on the way to making the software work", or "It wasn't designed to run with sqlite, only MySQL, and I have no time to change that", people keep keep keep coming back and demanding more time. "Which part of 'no' did you not understand?"
If an ecosystem doesn't develop around your software, if you have no other maintainers, and if you have a life, you should probably just leave it.
E.g. The ludicrous bashing of Gruber for not maintaining Markdown for the purposes of StackOverflow by Atwood.
For instance, if your site says that your software does X, and points to a "Howto do X" document you wrote--and that document is actually for an earlier version of the software and fundamentally won't work with the current version, and it won't be apparent that its fundamentally broken until after I've spend several hours going through the tricky steps of the Howto document--then you have wasted my time.