In some sense I request your forgiveness Vaslisa, as I am uncertain of many details that may have transpired, as I dont frequent the forum as often as I used to. I know you to be a very caring, considerate person, so I suspect there is much information that I am lacking or have missed that has made you very frustrated with Marm over time. I respect that frustration and I do not mean to imply it is invalid in anyway. As i noted, Marm was not being kind in some of her later exchanges and using her ability to see through people as a defensive tool to inflict hurt on them...
If I was to describe Marm and her page, it just strikes me as an enfp in hyper defensive mode. We tends towards hyper sensitivity, are easily provoked, and overreact when targeted, given the Ne tendency towards extrapolation and generalization. Once in a hyper reactive state, continual provocation becomes an attack upon one's core self and we refuse to back down and tolerate what we percieve to be bullying or maliciousness attacks by others. The response you might observe would be one of constant viligence and "punching" back, when others poke at us. Our punches will end to be extremely direct, while the provocation on the part of others is often much more subtle.
Likely the best reponse for a mixed social setting such as this is to walk away, cutting all ties with people we have befriended or care for, but it just feels wrong inside, so there will be attempts to stick it out and just ignore the hurt feelings-by putting up a tougher and tougher front to push those who hurt us away, to stand strong in our boundaries. (Ha, it is the opposite of an INFJ doorslam oddly). I note that once an enfp enters this hyper defensive state, they tend to become the center of a great deal of judgement and the external provocation increases almost exponetially (like vultures after fresh roadkill?) until things reach an emotional boiling point. I do not know why, but I suspect it is regarded as the enfp "being mean" combined with being "overly emotional" and the thought it that they should be called out for rudeness, which just escalates the situation.
I have met Marm and I know her to be very sweet and quite witty in real life, but obviously she felt pressured to take a very defensive (and thus offensive) stance towards her later forum interactions, resulting a great deal of disruption. Banning seemed to be a reasonable choice, but I still stand by it not being cool (and being unkind) to talk trash about others who cannot speak on thier own behalf.