Logical explanation: When I enter some thread on Hive, about a new map project or some discussion, and I look through the comments, a screenshot of a pony from a children show with something like "I mustache you a question" is one of the most unfitting things you can find. Same applies to resources and e.t.c
Another one is the fact that seeing mature men and teenagers being fans of a show made for little girls, is for some people very disturbing. Even though worse things have come from 4chan.
Short version: Some people think that on a WCIII and SCII site, pony fans should stay in the pony fan thread in the off-topic section, not "spread the friendship" all around Hive.
For example two times people put on my VMs pony images saying "At least 20% cooler" claiming that my profile was not cool enough. Id like to see pony fans do it to each other and in the pony thread and social group, not in other people's profiles and on random threads.