LFG tool is fine

[Zachaios-malganis (Zachaios)]

It’s trust level. You have to do an astronomical amount of crap before you can post links.

One sec, I’ll find the post from a MVP breaking it all down.

New Forum Guide - Syntax and Features - Community / General Discussion - World of Warcraft Forums (blizzard.com)

and this might help too:

Finding out your trust level - Community / General Discussion - World of Warcraft Forums (blizzard.com)