Because getting overflows on dragons and bosses I’ve been doing since before they even guaranteed yellows is garbage. There’s well documented proof of people getting way too many chests by riding their guesting options as liberally as allowed. Many of us joined lower population servers to avoid this kind of thing, and enjoy smaller boss fight communities. Now it’s vulture central. Hope a guildie is there, pray the ‘join teammate’ feature isn’t bugged, and then pray the capacity isn’t full.
If you’re gonna allow insta-guesting to take away people’s spots on the server, set two different capacities based on your home/guest position.
A #14 quiet server with a fun but small pve base should never be swamped by a bunch of #1-5 people watching like vultures via web apps.