::I'll have to say I fail to see WP:AGF in that interaction, and I also don't think that "I'm not going to forget your disruptive edits and vandalism[...]" is a useful warning - it certainly reads more like a threat to me. Please try to de-escalate, not to escalate conflicts. WP:AGF is there for a reason - not every edit you perceive as bad is actually bad, and even if it is, it usually is  a long way from vandalism.  Instead of assuming someone is "deliberate attempting to compromise the integrity of Wikipedia", take a step back, try (patiently) try to find out the reason for the edit, and then find consensus via discussion of the sources. It's not as if someone added "OBAMA FUCKS JIMBO" to the Oscar page...