OK, it's not the phrase "Bush Loyalists", per se, but the context. Let me explain via my "Israeli Lobby" example: You'll have one of those rollicking Israel threads and one particularly rational soul will get out-argued and start talking about his opponents as the "Israeli Lobby". The goal is to take a strident position and then to position the opposition as being monolithic and incapable of independent thought.
This then changes the discussion as the target feels the need to defend himself or herself as an independent thinker.
People on here who say "Bushbots" or "loyalists" etc do so because they wont use the term "conservative" because they believe Bush is liberal, hence his "loyalists" are too. I get tired of the sucking up on FR.
FYI The person who outted the fr member with "8 screen names" has SEVERAL of his own. I hope they do a check of that as well.