@Juber :
The bonuses and penalties offered clearly show that the designers are totally out of touch with the game. It's really worrying.
The basic idea was great, but once again unfinished, so was the arena.
Visit the Guild Member Tavern !!! Either they forgot to add the guild members in the possibility to visit their tavern, or they are not playing FOE!
Decrease the construction time so that after the first 3 ages nobody builds buildings apart from the specials shows that they do not play.
Reducing negotiation costs by 6% also shows that developers don't play their own game, 5 goods - 6% = ????
Big guilds will not waste time with this principle and small guilds will not be able to monetize the bonuses in 3 weeks.
Do you want to add a principle of mutual aid within the guilds?
Start by replacing the Support Pool with a useful bonus!
Listen to your customers on what they expect without falling into the exaggeration of too strong bonuses or unnecessary ones.
Instead of resetting the bonus every 3 weeks, make a depression of 33% per week while leaving the bonus valid until it reaches zero. In the long term, therefore, guilds wishing to maintain an advantage will give themselves the means and adapt appropriate management.
No need to create 150 different bonuses, make only 5 or 6 of which only 3 can be active at the same time, but bonuses that make you want to surpass yourself to validate them.