Server: Adventure Earth
Suggestion: Add the SlimeXpansion addon to the server.
SlimeXpansion would add a whole new realm of gameplay to adventure because on its own it provides you with so much to do. It would be awesome to have it on the server.
P.S if you're having problems with SlimeXpansion on 1.12.2 then try using the version 1.9 from the link below. Anything above that version is incompatible with 1.12.2 or below.
I think it would be good to have SlimeXpansion on AdventureEarth cause well its a slimefun server where slimefun isnt being used that much and it would actually persuade people to use slimefun more. SlimeXpansion imo is the best addon for slimefun because it gives you end game results and objectives to accomplish.