The problem with blocking names of politicians: the list of “notable politicians” is not only highly country-specific, it is also constantly changing-someone who is a near nobody today in a few more years could be a major world leader (witness the phenomenal rise of Barack Obama from yet another state senator in 2004-there’s close to 2000 of them-to US President 5 years later.) Will they put in the ongoing effort to constantly keep this list up to date?
Then there’s the problem of non-politicians who coincidentally have the same as politicians - witness 1990s/2000s Australia, where John Howard was Prime Minister, and simultaneously John Howard was an actor on popular Australian TV dramas (two different John Howards, of course)