One of my biggest gripe is that you cannot sort for non modded servers. Makes it very difficult outside of the few officials to find a server that is guaranteed vanilla.
Most modifications are simply changes to some server files, so it's hard to even show you what was changed in any specific capacity. We plan to display mods in the future (mostly anything that downloads), but not simple changes to core server files, given we consider that to be _necessary_ to be done by admins anyway, to adjust the experience to the specific server population. The idea of there being one vanilla experience is one that people shouldn't fall for - that vanilla experience is only suitable to a specific corridor of player amount and time usage. I can't repeat often enough that Eco is mostly a framework that admins can use to make their own experiences that work with their server population. They're doing god's work and it is necessary for a good admin and server to think about this.