As always with laws this is very location specific. In germany there is a very clear clause about patents not applying to "Actions carried out in the private sphere for non-commercial purposes" (ยง11 PatG, own translation)
"I'm in Europe so I don't have to care because software patents are not enforceable here" isn't the solution. Yes, patent law doesn't apply - but copyright law does, and they very much can take down content that references the spec just based on copyright law alone.
(Also I'd think copyright in EU doesn't normally apply to implementing protocols as it's supposed to grant monopolies of creative expression? but IANAL)