Title. There are also many more pros who also need profiles pic but I'm bringing up the most well-known imo
Vlr is its own style of forum (you can trace the history to team fortress tv and over.gg) I can't imagine them changing it drastically to be more the hltv style.
Also the site has tones of development work out into it, the APIs for stats and data collection. Data analytics features like vlr ratings.
Yuh, and if I had to guess demon1 probably has no photo because he was a sub at the time they sent the photos (BcJ was the one on main roster)