John's following
- Timothy Gebhardtimothygebhard
- Jacopo Antonellojacopoantonello
- Hekstra LabHekstra-Lab
- Fatima Kahilfakahil
- JialeSolarweapon
- Peng Jiazuzuligen
- dmills-lsst
- Daniel Harbeckdrhaz
- Sandrine Thomassandrinethomas
- Srini Chandrasekharanschandra
- bxin
- Larry Lartlarrylart
- Congli WangCongliWANG
- Wolfgang Heidrichwgheidrich
- FengChingTsai
- Xing FanSterncat
- Casey Deensoylentdeen
- algol50
- mikerushfordmikerushford
- angeliuska
- Marcos van Dammvandam
- David Munrodhmunro
- Han Zijiancaptainsoy
- Francois Rigautfrigaut