Like Ynders, I too like editors in videogames. Someday, around the start of 2012 I found TF2 and did nothing but play it.
Mid 2012 was when i heard about Hammer, but I had no clue how to use it, at all. I didn't even know how to make a damn brush!
Half a year later I tried again. By watching 3kliksphilip's "How to make water in 30 seconds" video i finally found out how to create a brush. I tried making maps, but I never showed them to anybody because I didn't know enough to make anything work.
Mid 2013 the steampipe update came around, which broke the Source SDK. So I had to find workarounds and while I was at it, I found strange websites like this. I also had started to help a friend with an edit of cp_orange, as he is a server owner and tried to use hammer himself. But that's another story and shall be told another time.
End of 2013 and finally I decided to join this community. A month later the 72h contest came around. I was too scared to participate. The entire time I watched Crash make a wonderful pl map.
And sometime later I started to regularly join the steamchat.
Btw, my usernumber is 16091, which stays the same if you flip it upside-down. hooray(?)