Sending that “lazy answer” because you assumed the other person hasn’t tried solving the question themselves seems like the “uncivil” action. You should probably assume your colleague has tried before asking for help, and probably tried the same lazy route you used to respond.

> You should probably assume your colleague has tried before asking for help,

Spoken like someone who has never worked in a customer support role.

You can never assume competency, from anyone. Even the best amd brightest have bad days.