That's great to have an alarm to 11am which is 7am at your timezone and be woken up at 3am after cross-atlantic flight next day.
Some people just like to add complexity to their lives and keep convincing themselves that it's better.
Anecdotally, I worked on a military facility where all clocks were in "master timezone" of the country without daylight saving offset. 6 months a year we put "+1" sign made of electric tape to not forget about that it's summer and 0400 is actually 0400+TZ+1. I worked there for 5 years and never got used to it.
Some people just like to add complexity to their lives and keep convincing themselves that it's better.
Anecdotally, I worked on a military facility where all clocks were in "master timezone" of the country without daylight saving offset. 6 months a year we put "+1" sign made of electric tape to not forget about that it's summer and 0400 is actually 0400+TZ+1. I worked there for 5 years and never got used to it.