I am not OP, but I since i think i am part of that audience.
Sure i don't have a 3 digit ID like you, I am fairly recent user, I comment rarely, my comments are barely interesting, but guess what? people like me are the vast majority of the users, most of them don't even have an account. I am happy that slashdot is trying to stay relevant and there are people like me still joining and visiting the site and it has not (yet) become a site of old men complaining about the good ol'days.
if the community is thinking that slashdot can continue being a viable new site by catering to links browsing sys admins from the 90's it is unrealistic.
It is not like dice is changing a winning formula, readership is dwindling, they have invested a lot of money, are they supposed to just sit and watch it all collapse? If you really want to make a difference and keep slashdot classic, offer to pay for it. if enough active community members do, they will keep it. Advertisement based business models need certain critical mass, slashdot is fast losing it.
Don't want to pay big bad DH anything? build your own news aggregator, there is enough unhappy with the beta people with serious talent and plenty of time on hands in this site. Do something useful and quit bitching about.
P.S Beta IS shitty, broken, very JS heavy etc etc,However #fuckbeta doesn't help either, giving constructive feedback is more meaningful? Dice may not listen/execute it, but at least it has better chance of working than #fuckbeta