I'd recommend AudioScienceReview for anyone looking for measurements-based evaluations of audio equipment instead of the weird and wrongly incentivized audio review ecosystem.
It's really hard to estimate the amount of time. Even spending 40hr on it wouldn't be worth it from a purely financial perspective even if you ignore ads and other costs, and I spent many times that in terms of time.
But at the same time, doing this helped me reach over $6k MRR this year. Could I have gotten out of the tar pit faster? Definitely.
I'm a little surprised you can't see the analysis for StackScope itself!
Also, it'd be interesting to see the trend of vibe score over time.