=article is totally irresponsible as it stands= 

 Some responsible person with more time than me should edit this article to make clear that: 
 (1) this would be seen as child endangerment if not child abuse in most jurisdictions (I say this as an attorney); 
 (2) hosting one of these introduces substantial civil liability risk for the culprits (see above); 
 (3) the chicken-pox virus causes long-term complications in a non-trivial portion of individuals who are infected; and 
 (4) acute exposure to high viral load levels, such as via deliberate exposure, increases the severity of most viral illnesses. 

 I am constantly amazed at the stupidity of the human species.