In my opinion, just is often used in an opposite way to condescension. "Just do x" is often used to assume you would do a more difficult task in the easier task's place. So, for instance, if you were to use an automation tool, I'd likely describe the last instruction on how to automate it as something like, "Just click the button and everything is running!"
"Simply", however, usually isn't used this way.
For further actions, you may consider blocking this person and/or reporting abuse
We're a place where coders share, stay up-to-date and grow their careers.
In my opinion, just is often used in an opposite way to condescension. "Just do x" is often used to assume you would do a more difficult task in the easier task's place. So, for instance, if you were to use an automation tool, I'd likely describe the last instruction on how to automate it as something like, "Just click the button and everything is running!"
"Simply", however, usually isn't used this way.