The unread count is correct; you didn't really _read_ those emails. The problem is that the UI is placing undue emphasis on the number of emails you didn't read

The unread count is correct; you didn't really _read_ those emails. The problem is that the UI is placing undue emphasis on the number of emails you didn't read; that's a pretty irrelevant statistic. Half of the emails I receive don't need to be read; just glancing at the subject is enough. Inbox got it right by not showing unread counts and just letting you mark emails as done when they're no longer needed.