Vandal

There are three types of 'vandal:

• the simple vandal who simply blanks pages or inserts obvious nonsense like "nyah nyah na nyah nyah" or "you are a troll" (only trolls can claim to be trolls, so, someone else calling you one is just fatuous compliment)
• the sophisticated vandal who inserts credible-reading nonsense like false facts that seem almost right - if this is nonrandom then they may be a POV warrior or funded troll which is not vandalism but a genuine conflict on what sources to trust
• the sysop vandal who exercises technological escalation and trust gained through doing routine tasks, to apply their poor editorial judgement, e.g. to ad hominem delete or IP block those whose philosophies aren't compatible with infinite tolerance of the Sysop Vandal point of view, i.e. that those who have technological power, are morally superior by definition.