IOTA requires that you manually assign peers because running on it's own it implodes from the bandwidth, because of course it does. It removed Bitcoin's throttling mechanism and now they want to figure out how to prevent these out-of-control blocks in this "blockless" blockchain. Sometimes the real world really is stranger than fiction.
I wasn't sure if you are troll or not, but then I looked at your nickname and decided to explain an obvious thing:
IOTA is for Internet-of-Things. Real Internet-of-Things which looks as described here - https://en.wikipedia.org/wiki/Mesh_networking... Um, probably too complex for you, I'll try ELI3 instead of ELI5...
IOTA is for Internet-of-Things. Real Internet-of-Things where a device broadcasts packets to the neighbors in vicinity only. We deployed IOTA to classical Internet with routers and other nasty things like https://en.wikipedia.org/wiki/Internet_backbone... Arghh, still too complex...
Imagine that we want to check how IOTA would work on Internet-of-Things. We deployed IOTA to classical Internet. Luckily ISPs already block global multicasting, but if we enable automatic peer-discovery then anyone can interfere with our battle-testing. This is why we use manual tethering. In the past we tested automatic peer discovery and it worked bad (which didn't surprise me at all).