This may not be TechSpot's thing but the build guides I value most are ones where the systems are actually built, tuned, and reviewed. Sure we already know roughly what each of the components can do but a great build guide can add specific insights into how well everything fit, what the temps and noise were like, what overclocks were applied*, whether the builder ended up happy with their part selection or would consider changes if doing it again, etc.
*plot twist: on today's top end gear, rather than overclocks, I think I'd rather hear what limits were set to get most of the performance for a lot less of the power / heat / noise.
Another interesting commentary section can be the pros/cons of building now vs. building later (recognizing that there's always some people who need to build now making that moot for them.)