What a clusterfuck...
So if julerz12 told YoMix the escrow funds are stored in a hardware wallet then why is he using the Electrum hot wallet? Was this from a on purpose?
You misunderstood something here. julerz12 was using Ledger for his own salary while funds for campaign were on his hot wallet (Electrum). And yes, it was very irresponsible to use hot wallet for the sake of convenience but it is what it is. Lesson learned the hard way.