I’m not sure what you referring to.
I am referring to this very thread here, with the "obviously" you did not quote.
There are options that read like this. Obviously. I think op might talk about the option to sell a limited amount of a thing.
Also, the complaints about confusing features were not about those features as such, as I explained in the last paragraph. They were examples for a general issue that seems to occur frequently: users do not grasp what some features on this site do. (Or else, why does this thread exist in the first place?) There are many, many threads in community that show this issue at the core. Maybe it has to do with the world wide audience. Maybe it is just quirks of itch. I could give more examples, but those quirks do get troublesome if it is about payment options. I assume that for everyone not understanding a certain feature and posting about it, there are many more that have the same issue, but do not speak up.
You have more insight about the support inquiries. If people ask "stupid" questions about a feature/pricing option/etc, it means, that the site might explain it better. Like those limited downloads. And, it is speculations that those rewards were meant, since there is something limited about it. I believe there is a language/translation issue somewhere.
But however it happened, it looks to me, that op did read/understand something on itch to mean, that there is an option to have limited downloads.