If no one liked reddit, no one would be there. The majority of current users came from digg. You can watch the decline in content and maturity since then (and before then as digg was shedding users before they flipped the switch on diggv4). The content APPEALS to them which is why reddit keeps gaining users.
The "real" or "hardcore" users, aka the ones that have been there since when the content was good and relevant, are smart enough to find subreddits that appeal to them because they like the style and functionality of reddit.
I will agree that digg could go back to its tech roots and gain back some of that crowd. I myself have found tech related news on digg that was not posted to reddit, at all.