I saw that other thread yesterday (haven't read any more today) and yes, I was somewhat disappointed with the aggressive stance taken by a great number of the veteran posters who responded. But to be fair there were a few helpful replies in there too, pointing in the general direction of tutorials, and of player groups who are willing to lend a hand to new players.
Having said that, the tone of the OP in this thread is somewhat dismissive of both the game and its community and is unlikely to win you any more friends than the other thread. I do understand that ED can be a frustrating experience, but some people actually do love it. We're not making it up just to annoy you. We do get something out of this game that you currently don't (something that may or may not change down the line), and tarring the entire community with the same PK brush while dismissing the thing it generally enjoys is perhaps not the best strategy.
The thing you have to remember about ED is that it's basically an indie game. Developed by a small team, based on a 30 year old concept, funded initally by a narrowly successful Kickstarter, very British in so many ways, ED doesn't really fit into any of the narrow categories people try to shoehorn it into. It's a bit MMO. It's a bit simulator-ish. It's a bit arcadey. It's Microsoft Flight 3302, it's Europa Truck Simulator, it's Descent Arena, it's Stunt SRV Racer, it's Space Engine First Person, it's DCS Galaxy. It's one, many or all of these things depending on the mood of the player. It's like nothing else out there.
So your assessment of it as a permanent beta, while perhaps a little harsh, isn't massively off the mark. It is certainly in constant development, with many features, tweaks and bugfixes still to come. That's part of what makes it so interesting to some of us, but it's not for everyone.
As for the noob-clubbing, unfortunately it is undeniably a part of the current game. Not something that's universally adopted, but adopted by enough for it to be an issue. But that's where the true genius (or insanity, depending on your POV) of Frontier's "three equal modes" design comes into play. All three game modes have the same influence on the game, and you can do almost anything in Solo or Private Group mode that you can in Open play, and avoid the seal clubbers entirely. It's not how the developers hoped things would evolve, and it's most definitely not a universally loved mechanic, but if the "HTFU or be clubbed" crowd are too much for you the alternative modes are there as an option. At least until Frontier attempts to level the playing field a little, of which plans are already afoot.
Bottom line: this isn't yet a AAA MMO title, and may never be, despite what the marketing might have led you to believe. So if you feel ripped off by that, I can only sympathise. There are many of us in the community who believe the game was massively mis-sold with its initial launch campaign, although things have become a little more restrained since then. No, what ED is is a unique product. Niche. Indie-esque. If you can embrace the idea that some aspects of it are going to feel a bit odd, can accept the idea of constant (or at least semi-frequent) change, and can learn to mentally filter the output from the more vocal members of the community who seem to have forgotten what it's like to be new to this game, you may yet find it has a lot to offer.
On the other hand you may not. ED quite simply isn't for everyone. And that's in no way meant to be dismissive of you or anyone else who doesn't "get it", it's simply a consequence of just how unusual the product and its development pattern is.