No, I'm not reading this as a way to 'other'—look at this user's other tweets! They're a technical person who from the sound of their content is probably Gen Z.

No, I'm not reading this as a way to 'other'—look at this user's other tweets! They're a technical person who from the sound of their content is probably Gen Z. 'Nerd' is used by technically-inclined people in that age group as a term of endearment—it indicates that you're part of their tribe, that they recognize you as one of their own. You can take offense at that because it's not how you think of the word, but that's the way the language has gone.