not sure of the exact methods planned but attacking peoples computers is illegal in many countries
http://www.technicallylegal.org/the-legality-of-denial-of-service-attacks/ relates to the US
one snippet
In terms of criminal violations, there’s the Computer Fraud and Abuse Act (the “CFAA”), which prohibits a person from “knowingly caus[ing] the transmission of a program, information code, or command,
and as a result of such conduct, intentionally causes damages without authorization to a protected computer” (see 18 U.S.C. § 1030(a)(5)(A)). The requisite “damage” element under the CFAA is “any impairment to the integrity or availability of data, a program, a system, or information” (see 18 U.S.C. § 1030(e)(
) and a “protected computer” is defined as a computer “which is used in or affecting interstate or foreign commerce, including a computer located outside the United States that is used in a manner that affects interstate or foreign commerce or communication” (see 18 U.S.C. § 1030(e)(2)(B)).
but ppl that get upset over what goes on in a shoutbox probably think that wont relate to them...