Is camping really an advantage against offensive players? I am an offensive player and campers are easy, if sometimes annoying. Just build a bridge. I you always have one person there who will shoot the guy with the TNT, you will eventually get there.
They are able to protect their egg, they get resources whilst you attack them, they constantly shoot you whilst you're building a bridge and if you finally reach them you still have to kill them even though they have more resources and most of the times more players unless your team consists of friends.
I know it's not extremely difficult to defeat campers, but it takes so long and sometimes you even lose after spending like 20 minutes trying to get to their island. If they are some experienced campers they also like to just put some TNT on your bridge once you get closer.. Sorry, but in my opinion they have quite a big advantage. There is a rule against it, but come on who is going to record some campers for like 10 minutes for them to get a low punishment.
I've played a lot of EggWars, but I've quit playing it on my own because it just gets extremely boring when you have to spend 20 minutes almost every game fighting campers..