> If my neighbor mows my lawn for free, I'm not going to complain about his workmanship. If I want the job done a particular way, the solution is to do it myself, or pay someone to do it the way I like.

I think this is a decent analogy, but it works better the other way. If my neighbour offers to mow my lawn, I accept, and then he destroys the flower bed adjacent to the lawn, I will be upset, and I will have every right to complain about what he did. If he reacts by blithely dismissing my concern, then I certainly have the right (and arguably the obligation) to warn others that they should think twice about accepting his offers of gardening assistance.

Some expectations reasonably go without saying; "don't destroy my flower bed when mowing my lawn" is one, and IMO "don't destroy my data without a clear warning and a chance to back out" is another, though of course we might disagree about exactly where this does and doesn't apply.

Suppose that you build a childrens' slide in your front garden. You put up a big sign saying "Consider using my slide! https://neovim.io/ Here are several wonderful things about it. It's free for everyone!" in your yard. Underneath in smaller letters you add "[No liability]". You also put up noticeboard ads for your free kids' slide in neighbourhood shopping malls https://launchpad.net/ubuntu/+source/neovim https://wiki.archlinux.org/title/Neovim . Unfortunately, when you built the slide, you left sharp metal edges and corners sticking far up on the inside, reaching into the path of the user. No reasonably competent and diligent metalworker or slide-maker would have failed to notice these major flaws or failed to understand the serious danger they represented. Several neighbourhood children use the slide and receive serious gashes to the legs, arms or face, and have to go to the hospital. Even assuming that your no-liability small print somehow had you free and clear legally, do you believe that your behaviour would have been ethically and morally above all criticism? Do you think that "should have read the small print!" or "can't I build what I like in my own front yard?!" would have you covered? Do you think that your family and friends would agree?

If my neighbor mows my lawn and ruins my whole garden, I'd definitely complain. (And if I were in the neighbor's shoes, I'd feel awful about it and try to fix things.)

If my neighbor mows my lawn for free, and in the process mows my flower garden down, things change a bit though don't they. That is a closer analogy. In that case I am going to complain, and maybe also tell everybody he's careless and not to let him near their lawns.