Mini-rant: people on hacker news frequently undervalue their knowledge and don't consider the things they know to be of much worth. A classic example of this is the "I can't see why dropbox is a thing, simply build a cloud file sync service - easy" post. This poster is running their own semi-professional router (pfsense) on whitebox hardware. I would not want to do that unless I already knew what I was doing or wanted to spend some time learning.

The type of network segmentation being discussed is not rocket science, but it's not trivial either. VLAN segmentation can have tricky edge cases that cause things to break in a non-obvious way, nothing that can't be worked around but for someone who "isn't well versed in networking" would probably be more than you're up for. Also keep in mind that you can't do this with most consumer networking gear becasue it's too complicated to setup and support without some experience and knowledge.

I'd not recommend VLAN segmentation unless you want to become someone who is more versed, which I don't oppose, but it's not a switch you can flip in 5 seconds and never think about it again.