Not only is this ad hominem (calling a person “too stupid to look up the moderators” is not relevant to whether the research they did is valuable, the two are independent and you’re addressing (incorrectly perceived) personal characteristics rather than flaws in an argument) but also, friend, you’re telling on yourself. Spam is a legitimate concern in this and every online community. Nicole is a known spambot. You spammed your own community as a moderator. Apparently as a joke that most people seem to have gotten. Your response is basically [I’m the mod here, I can do whatever the fuck I want]. And no, you can’t. Contrary to what you might think, this isn’t your community. You are just currently (actually, looking at the mod list for this community that seems to be formerly) one of the people responsible for facilitating the dialogue this community is, in principle at least, trying to foster.

A joke is one thing, but coming out of the gate hot like this calling people “stupid insipid cows” because they reported nicole spam is… unempathetic and tends to suggest a power trip. In other words, “Be nice :)” applies to you, too.