1. Account creation: I used Firefox on PC (win 10 pro x64) and Safari on iPhone. It's not a browser problem. I have third party cookies disabled, but this dosen't interfere with creating accounts on other sites.
2.I have a powerfull pc, I know a few things about computers... I build mining rigs. I switched between tabs, setings, overview etc. and for a few seconds text from one tab kept showing to the other. (I disabled antivirus, I know how to use remote nodes, this is not my first contact with a gui wallet). The wallet needs some improvements, but is not a big thing. The first issue is bothering me, because I can't register to the airdrop.
I will mine some coins though, because I am very anxious to see how things will evolve after 2 years, when all coins are mined. And I support every coin that is ASIC resistant.