Like I'm saying, I have been using EN for 12 years... it has NEVER been reliable for images.
Yes, I understand the difference between clipping from a web page which would often result in a "referenced" image (which will eventually disappear) and clipping an image file directly.
The issue is that Evernote do not care about the fact that this distinction between REFERENCED and SAVED FILE is not obvious to most users, and results in tons of data loss.
This advice is beside the point because I have lost media in notes saved with each method 1-5 you list above. Evernote still have not solved how to use media in notes, whether it's a linked file on the web, or a file I drag in from my desktop, or a screenshot from the helper tool, etc.
Additionally, there is no way to know - if you're looking at an existing note - whether the media is being pulled down from the web every time the note is opened, or if the media data is actually saved hard in the note. So users have no indication of whether they will lose their media once the source web site puts an extra character in their directory names, or whatever.