In-depth walkthroughs sometimes take longer than coding a $20/month subscription game (no offense Hizor, I'm not referring to
Uni here, and on top of it, it's available for free after a month, so you know it doesn't apply to you) and they're completely free. Not everyone expects a thank you, praise or money, they just want to help others and contribute to the community in any way they can. That is in no way easy or fast even if you work extremely quickly. Time also is money.
Many old-school developers will also provide them, either for free or as thanks for supporting shareware exactly once, but I understand that shareware is kind of dead in 2021, so many people are in the dark with the newer mindsets and the comparisons sound kind of weird.
drdeath4h I really needed that laugh. Good one.