See below for a quick edit to my original question!
I know the initial answer is "no", but hear me out on this. I'm primarily a computer nerd, but getting more into photography over time. For building PC's, there's a really awesome subreddit, https://www.reddit.com/r/buildapc. On top of being able to post what you're planning on building completely, you can also do something like post your current PC's part list, and ask what component is your bottleneck and get suggestions on what to buy given the amount you want to spend.
As a budding amateur photographer, I'm very interested in what gear I should buy. Now, I know what your initial reaction will be - "well, it depends on what you want to take pictures of" - and that's totally fair. Here's the thing - I don't know yet. I don't have a specialty. If I see something really small that I want a picture of, I'll take that. If I see a wide skyline, I'll take a picture of that. If I see a pretty scene but it's dark, I'll take a picture of that. Not having a specialty is part of what draws me to this site - I can learn something different from every question.
I also know that different people prefer different brands, and that the definition of quality is subjective - but still, I'm going to spend my money on something photography-related, so I'd rather an expert tell me whether it's a good or bad idea.
So, given my gear (say, a basic DSLR with the built-in lens), there's a huge range of things I could buy - lenses, bodies, flashes, tripods...too many nifty things to list. Is the Photography Stack Exchange a good place for me to ask what my next purchase should be to increase my skills and increase the quality of my images?
EDIT: I was looking through some other questions and found this message in an "On Hold" notification: "Questions seeking specific product or service recommendations, where the answer is likely to be either entirely personal or short-lived as a result of changing markets, are off topic here." - to that degree, I totally understand. On the other hand, maybe a more general question of "where should I focus next?" with potential answers like "master indoor flash" without mentioning a specific product might be useful to tons of up-and-coming photographers. I personally feel that such a question would not be short lived (sure, a sale for a specific flash may end next week, but the concept will surely remain), nor will it be a result of changing markets for the same reason.
What are your thoughts?