This is exactly what I was talking about. As a beginner how am I supposed to know that the link has moved to somewhere else? And to where? Why not just update those pages - most of them are your old blog posts, so you must have access. If you ask me this is the worst option that you guys have chosen.
And I can tell you I hit A LOT of them. My first week in corona I spent more time on web.archive.com (looking at the exact pages you seem to be trying to remove - and learning from them) then on your own site. I just don’t see the point. Update the pages - put a notice on the top that this is for an older version or a link to the actual new page. At least it gives people a way forward.
Another bad one is: https://coronalabs.com/blog/2014/09/09/tutorial-working-with-curved-paths/ - this teases me with some explanation and an example program, but the example program links are not valid any more…