Removing silencers is a fair suggestion, may not be what everyone wants but I can see why some people don't like to fight against them, i personally don;t mind, but if you have a decent level of game sense it is pretty easily to conceal yourself from ever being found in a gunfight using suppressors on many guns (spar17 being the most effective) plus it adds a different level of play style as whiffing shots from a few hundred meters away, or just shooting in general reveals your position and making a main target so timing your shots better and prioritising becomes more prevalent. Personally i don't care too much for silencers with the exception of sniping, but that can be dealt with in other ways (Remove Chris Kyle).
Your argument against this is pretty poor, your basically saying removing an element of the game is stupid if some people like and dislike it and if you remove silencers you might as well remove scopes. I get your point, silencers are a big part of Arma however, by this logic the server should have Navids, tanks, explosives artillery etc as some people both enjoy and hate having these things available in altis life. Removing certain items and vehicles from the game can make it better and fairer for everyone and silencers are one of things that many people consider as a negative, as would be navids etc.
Imagine if the server had apcs, and everyone went round killing people with them...
"What you want tanks removed because you don't like tank warfare? While we are at it we might as well remove vehicles all together?"