I'm a 30+ guy who enjoys playing single-player Half-Life 2 mods. I only edit this wiki when I'm working with Hammer.
I'm currently doing a lot of edits linked to stealth-based gameplay. In a way Flesh revolutionized horror games for me, by going beyond even (Forbidden) Siren by completely removing weapons, so I'm going to fail miserably at making a similar mod (which will certainly never reach release).
If you want to make a mod, consider reading this guide: