why is this possible to replace:
someone removed his/her with someone removed their
can I also change:
The user clicks on the button. He/She then sees.. with
The user clicks on the button. They then sees..
or how would you ignore gender more elegantly?
This called a singular they and its use is common
It remains syntactically plural though semantically singular, so you would need to end with "They then see ..." - see the discussion in Why isn’t singular ‘they’ used with 3Sg verb forms?
There are many alternatives, including "The user clicks on the button and then sees ..."
