@xansievera
Advertisement: KM was riddled with ads and they block your IP if you use adblocker. MD doesn't have ads.
IP block: KM blocked a lot of countries' IP, Asia most of all, MD doesn't do that.
Content: KM uploaded official scans and ripped the translation from other sites without any fixs (unless the users nag about it a lot), MD doesn't allow official scans and scanlators are free to withdraw and fix their uploads.
Admins/Owner: KM's owner is known to shut down the site and run when he smells trouble without letting anyone recovers their data. I trust that MD won't do that.