Probably not, as I’d venture to guess he has zero to little programming knowledge. Discourse is getting a lot more CM (Community Manager) attraction now and a lot of those who are engaging here on Meta are no longer devs/programmers, but the CMs. To ask a CM to submit a PR is just unrealistic.
Just for clarification, there is a big difference between changing CSS/SCSS and actual programming changes. I have no idea what @Qasem_h’s experience is, but I definitely see more CMs participating in Meta than what were here several months ago.