And the final two paragraphs at the link you provided us...
RANK and HIERARCHY The approbation of "ordinary elders" demands a set of elders who are extra special, thus creating "rank" in the otherwise Divine brotherhood, all of which DESTROYS fellowship, creates division and strife, and fosters envy. It is no marvel that Jesus hates this, condemns it, and demands the guilty repent.
The question is will those who follow the ways of the Nicolaitans repent? Yes, some will when the tribulation is on. Others, however, will stick to their ecclesiastical crowd, vainly imagining that their boasted "superiority" will carry them through that time of the greatest trouble the world has ever known, or will know. They must go down with the rest of the hosts of Antichrist.
About the Nicolaitans