You know how if you dont have certain mods, you downloadthem when you enter a server. Say someone has a mod you can find anymore and no one will give you? You downloaded what you needed from the server, why cant you use what you got in your own servers?
My proposal: An optional "Download full mod" for the add-ons on a server that you dont have.
Before you whine "Well what if they dont want their mods used in other servers!!?" The host would have to MANUALLY turn this on. Thus, only if someone asks or the host just feels generous they could get everything they need to use it as an add-on they downloaded themselves.
A possible response: "Its called the add-ons section, use it"
My answer: Sure, I'll go through begging people to re-upload mods that have broken links. And if the link isn't on the forums and wereever I found it is broken, well, I guess tought luck then? NO
One of the reasons I want this is because even if I download the mod, something is changed in it and I have to wait awhile to RE-DOWNLOAD it anyways. It's happened to me before with the stuntplane, seriously.