Yay! Good to know the notification worked at least, even if there's a little bug that needs to be ironed out! =D
That's the thing, though. What is the distinction between "just an update" versus a completely new episode? With some comics, entirely new content may be added through an edit, and there may be little to no difference between an edit and a new episode, content-wise, when a chapter gets too long to fit in a single episode.
The problem with putting these in the activity section is that creators often have a TON of activity notifications. I don't want new content to get buried under a bunch of Like notifications, for example (not that likes are insignificant!). This may change in the future when the activity notifications are improved and categorized, but in the meantime, creators like me might be just better off adding new episodes for new content.
And as a reader, too, I'd honestly prefer to keep all "here's more comic to read" notifications in the reading list section. My activity notifications are for comments and similar interactions... It's not for "ooh! New comic to check out!" and now it suddenly is?
The concern about 'little edit' updates flooding the reading list is definitely understandable, though. @noxfox's suggestion about sending it to the reading list when it's an update of the latest episode sounds most excellent; I hope it is feasible.