Now that I've seen the Lemons' past, they do not have the rights to shoot down ANY kingdoms. They're on equal footing just like us. Just because they were the first kingdom and was 'official' does not mean they have more rights in any way. We're all official now, too. We all have banners too.
The difference here is that
the Lemons have learned from their past, and they are taking steps to prevent such event from happening again.
(I hope)
They learned that their ego caused other upcoming kingdoms to sink, so now they don't intervene anymore with the new kingdoms unless it is of pressing matters.
This is obvious as the new kingdoms' existence haven't been counter-argued by the Lemon Kingdom lately, nor did they reference EFF harshly as "nonsense" before it was eventually called that.
They think they're SOOOO great and SOOOO confident.
Well, they are supposedly indestructible, but that doesn't give them the right to push/attack other kingdoms around.
So they basically don't attack other kingdoms and are peaceful to keep it fair.
But here's the problem in your statement, they haven't really pushed around anything around other than RP rules, their cash in RP restriction, and their "indestructibility", which can all be seen as ego related...
They do have ego, reenforced due to their existence actually has a history that makes sense, they have their own kingdom block in the game, and is the oldest existing kingdom on the Terra Tech Forums that has set the
basic example for all future kingdoms following it. That means that they have set the standard for the basic essentials of a kingdom, which means they
don't have to follow the rules of the recent kingdoms with their addition of the "combat mechanic".
The original doesn't have to always follow the new trend.
RP rules have been so unstable lately that I just don't want to bother with them anymore, or simulate any new battles that often. The Lemon Kingdom obviously doesn't want to bother with it either.
Cash in RP changes over time, it fluctuates very often, so technically all kingdoms have infinite cash. The main problem here is "What is the constant BB gain rate/method of gaining BB?" The Lemon Kingdom mentioned that it has a ridiculous amount of cash, but so far hasn't used it yet, making it fair in a sort of unused way.
Being indestructible is OP if the kingdom is always fighting other kingdoms with offensive Techs, but that isn't the case with the Lemon Kingdom, since they have vowed not to attack another kingdom unless in defense.
I'm sick of people treating the Lemons like they are a higher level or whatever.
They are known for being good at their form of role-play that doesn't promote anger like the new kingdom combat mechanic does.
In other words, the Lemon Kingdom is mature in its actions.
People come to their kingdom to experience non-offensive role-play, which is the best RP method at preventing
locked threads while resulting in fun.
On the other hand, RP combat is fun, you just have to look at the right parts of it: Specifically
the battle that happened is the part that is the best and the most fun, not the winning part.
Being salty about winning and/or losing is what causes issues in the first place.
Nobody likes it when they try hard to "win", but the person who inputs less effort wins, but sometimes nothing can be done about it (especially without restricting rules).
In the end, restrictions are there to balance the fun to make sure the fun is spread out fairly between both sides, but the Lemon Kingdom doesn't have to abide by those rules, because they set the kingdom standards first.