Pool's Closed

Bridget Blogdett discuses virtual protests and theories behind virtual collective action in her article And the Ringleaders Were Banned: An Examination of Protest in Virtual Worlds. Blogdett explains that hacktivism is how social movements use the Internet to advance their cause, while Computer Mediated Communication "examines the roles of communication channels in shaping social practices." Blogdett also analyzes a few different examples of virtual protests under the theoretical framework for virtual collective action. To do this she discusses each protest's degree of virtualization, legality, cultural homogeneity, and limits on participation. The degree of virtualization refers to the "percentage of the amount of organization and participation that was achieved offline or virtually." Legality is how legal both planning and holding the protest was, while cultural homogeneity is what level of diversity exists between individuals involved with the protest. Limitations on participation is a measure of how many people cannot participate in the protest and what prevents them from participating. In all of the cases Blogdett examined, participation was limited to those who had access to a computer and the specific game the protest took place in.

Habbo Hotel had an in-game protest in 2006 which has been commemorated annually since then. A group of avatars wearing identical business suits and afros gather near a pool in Habbo Hotel and blocked the entrance. At the time, Habbo Hotel did not allow avatars to walk through other avatars, so other players were unable to use the pool. This protest was in response to perceived racism by Habbo Hotel's moderators. These avatars had been gathering to block off public spaces of Habbo, but on July 12th of 2006 they planned and organized a large protest with numerous avatars. It was rumored, specifically on 4chan, that Habbo's moderators were blocking mainly black avatars, so players created the black, fancy suit-wearing avatar to represent a wealthy black man.

The Pool's Closed protest of 2006 was almost exclusively online, though not entirely in-game. The Source of unrest was in fact 4chan comments, though they referenced in-game occurrences. The planning and marketing of the protest also happened online, using a variety of different websites. Additionally, though not directly part of the protest, there were real-world implications that resulted from the Pool's Closed protest. People dressed as the avatar and rallied at the headquarters of the parent company of Habbo Hotel. Any real world occurrences relating to the protest happened after it occurred in game, but could still be considered a part of the protest.
The Pool's Closed protest was probably legal in terms of real-world law, but it's in game legality is questionable. The raids were quite disruptive and caused some big problems for Habbo, and many participants were banned. Based on the banning of numerous avatars, I'll conclude that Habbo considered it illegal or it was against their EULA.
There was a fair amount of diversity amongst those involved in the Pool's Closed raids. Though many were Americans, as the protestors marketed themselves, it became of interest to many of the users of Habbo. Since Habbo is owned by a Finnish company, it has many  international players who may have been involved with the protest. It is also quite difficult to know who was involved because the protest was advertised widely across the internet, and all of the avatars were intended to be the same.
The main limit to participation in the Pool's Closed raids was access to Habbo. To participate, a player needed knowledge of the raid and the proper avatar to make, as well as the basics of computer and internet access. Beyond that, nearly anyone could participate.