I think Matrix’s explanation above clarifies Admin's stand relating to political discussions. It's just not possible, on a board as diverse and active as this one is, to avoid politics completely and unequivocally.
For example, it's impossible to avoid the subject completely when we discuss things like taxes, health care, financial issues etc where it's entirely possible we might touch on some aspect of politics, however peripherally.
However, airing one's opinions about political figures, elections, parties etc. is different than requesting information or engaging in a factual explanation about the structure of a government or other governing body.
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As a Moderator and/or Admin on other boards and groups, I will say that it's often a thankless job, and it can sometimes look like Admin is engaging in an all or nothing, black or white approach which in my experience isn't typically the case. But on a board as busy as this one, overviewing every post is labor-intensive and tiring and sometimes just not possible to do so in as detailed a fashion as its members would wish. So sometimes the nuances of a post are lost because Admin is focusing on the larger picture.
That can sometimes make it appear that our voices are being silenced, or our freedom to post curtailed. Nope. It's just Admin doing the very best job it can to keep the board friendly and smooth running, under trying conditions and often with heavy time constraints.