That's debatable. It became the place for homebrewing discussion because many of the early members posted incredibly valuable info and the owners market the heck out of it but over the past several years it's an increasing imbalance of sketchy to outright bad advice. Plus, the volume of threads is so enormous now that you're lucky if a thread gets more than a couple decent responses before it disappears into the void.
Is there another homebrewing site you like better than HomeBrewTalk? I've certainly looked at other forums as well but would be interested to hear if you think there's a superior alternative! I've only been homebrewing for a few years now so don't have a historical perspective on how HomeBrewTalk has developed. But I found it to be extremely helpful in terms of selecting my initial equipment and getting started brewing, especially in light of the somewhat outdated/unhelpful instructions many brew shops distribute with starter kits. Even moreso, when it came time to build a temp controller for my fermentation chamber and establish my kegging setup around a vintage Crossley fridge (fun project BTW, and I'd definitely recommend a vintage fridge to anyone considering a kegerator build), the forums were invaluable and provided information and support I likely couldn't have found elsewhere. I don't frequent HomeBrewTalk as much now that I've got my brewing routines well established, but it remains my first stop when looking for new recipe ideas and feedback.
HomeBrewTalk is a very large community, but it hasn't generally been my experience that my questions are ignored due to the volume of postings. Of course there's plenty of bad/conflicting advice to be had there along with the good, but I've found that to be true on most forums and just requires a bit of discernment in what advice to take.