I like using batoto as my main source of reading manga online for many reasons, but that doesn't mean it isn't without flaws.
Similar to the implementation on sites such as mangapark, I would like an option to be able to view all of the pages of any given chapter on one web page, such that the way to navigate through the pages would be to scroll down instead of clicking with the mouse or using the arrow keys.
I can understand if the reasons behind not implementing this would be bandwidth/traffic issues, but if there are reasons beyond that, It'd be nice to know.
Also, I would like to state a counterpoint in advance to the possibility of traffic issues being the blocking factor. I assume that most people who view manga here view it an entire chapter at a time, sequentially, page-by-page. In this case, they would load all the images anyway, and in fact would be loading the other site elements that many more times.
If it's an ad revenue issue, just add more ads. For example, the vertical banner ads on the side of the page? Just stack them on top of each other as a strip running down the page's side, one per page, or more.
In this hypothetical situation, this would also be an option that would need to be turned on, i.e. the default would be the setup as it is now. This would mean that it wouldn't cause trouble for the majority of users, but it would still exist for the users that would want it. And maybe it could become more popular than the default setting, at which point it could be considered for becoming the new default, but that's far down the line, if ever.