How to speed up your Linux laptop (medium.com)

Easy Linux tweaks to improve your laptop performance

The first advice is to disable hardware mitigations. This could be OK in trusted datacenter setting, but SPECTRE/Meltdown could be exploited via Javascript, just by visiting the page -- so disabling them on the laptop, which is presumably used for day-to-day web browsing is a bade idea.

Some seriously bad advice here.