In my opinion, Elena is good choice. It's very good for reading, and that's the key. Yes, backend is mainly code-focused (github's gist), but people will most l

In my opinion, Elena is good choice. It's very good for reading, and that's the key. Yes, backend is mainly code-focused (github's gist), but people will most likely post not code, but regular articles. So there's hardly anything anachronistic about the typeface - github is just implementation detail. As for Elena's character and style, it's there, but I always prefer some character over none - Freight Sans wins over Helvetica any time. Github uses Helvetica / Arial by default, so if someone wants default design, they can simply link to gist. So once again - my arguments may not be the strongest, but I have a gut feeling that Elena is not wrong choice for such service, and if you like it, use it.