Author here. I don't expect people to pay me for anything. My main motivation was (and still is) to just give back, since I profit from free information and software created by others as well. I fully expect this temporary increase in traffic to net exactly what it has netted before: almost nothing. And you know what? I'm fine with that. Donations are not the reason this little project exists.
What I am is struggling to make ends meet for some time. A new laptop is near the bottom of my priorities right now. Money will run out around the beginning of February. It makes me sad to read cynical comments like this. That's all I have to say.