I'm not sure that that is a safe assumption to make. There has been a lot of conversation on this forum about Joplin prompting to resize images larger than 1920px down to 1920px. In fact the end result was the introduction of the Note > Resize large images option in the settings so that Joplin did not even prompt to resize large images. Seems that those attaching larger images don't even want to be asked to resize them never mind actually resize them.
Of course your version of the app may attract a different type of user compared Joplin itself.
Speaking of which, what with the above and your idea in another thread to delete attachments from the Resources folder when a note is deleted, it seems like your version is starting to drift away from how Joplin behaves. Would it not be beneficial to fork it into its own project?