Although I personally think the stackable bonus is bad for the game, and therefore, ultimately, bad for the dev.s (and therefore will be addressed, as German server chap mentioned), I can see both points of view. JoxerTM, for example, used his intelligence and initiative (and money I guess) to forge a path towards the GGs, because he, rightly, saw how much of an advantage it would be to him and his alliance. I respect that.
At the same time, I can see the point of view of people who don't want devote a ton of time/money (or, in my case, brain-power, lol) to working out and pursuing the absolutely most efficient path to winning the fort fight side of the game. Those second people, myself included, are, naturally, peeved that they can't enjoy the odd fort-fight from time to time because of the GG, and naturally, look (possibly through slightly rose-tinted glasses) back at the 'simpler times' when fort fighting seemed to have more strategy and be more open to players of all levels and of most specs.
It's a tricky one. It IS unfair to drastically reduce the stats of a weapon people have invested so much time, effort and money into getting. It is also unfair to non-premium players and non hard-out fort-fighting players to not be able to enjoy a pretty major element of the game (any more). The only solutions I can see are to either limit the stackable bonus to a certain number per sector (I haven't fully thought this out, but it seems on the surface of it that GG players would still do very well at fort fights, but non-GG players would have a bit more of a fighting chance than they currently do); or to introduce some other new factor that would even things out (I don't know, maybe some sort of fortification/item/bit of clothing that changes how LOS works? or having different sorts of terrain around the forts, with each different type affecting the battle somehow? or having a 'lucky gun of the day' -never a golden one- that is randomly chosen by the game just prior to round 1, or..?)
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As for the boycott idea. In theory I like it, and will suggest it on our alliance's forum (or at least open the idea up for feedback); nevertheless, it has the flavour of one of those emails I get from time to time saying 'the petrol companies have an oligopoly (I'm in NZ), you can affect their profiteering by everyone not buying petrol (sometimes from just one company) on such-and-such day - then they'll take stock and put their outrageous prices down'. This kind of thing never works. But it's possible it could work here, as there're fewer people in The West than own cars in NZ, and maybe people are more worked up about fort fight inequalities than the price of gas (yeah right...)