And for the very reason it was a mod first made by different people (only one of which is involved now I believe?) is the downfall of CS in my opinion. Valve got hold of it and molded it into what they thought was best. Newer players to the game starting with CS:Source will not understand as they were never part of the community or playing the versions that started it off. Hard to explain, but this is one of the reasons why you see so many old cs players having a bit of a moan, including myself from time to time.
Imagine your favourite game being slowly stripped away and replaced with something else. Forget 1.6 for a moment, all the versions before it are not supported anymore nor playable online, so those versions that many of us loved are long gone with no option but to play what we're given. 1.6 is OK, but too many people forget that even 1.6 is far from perfect. Remember the shambles that it was when it first appeared compared to 1.5? People have accepted it because they have no other choice. 1.5 was practically perfect at the time and Valve tried to make it more fancy. Shield anyone? Pointless rain on Aztec? lol, people forget. The same can be said for versions even before 1.5. But in my opinion 1.5 was more rounded gameplay wise. CS has been screwed up for a long time before CS:Source even came along. Trouble is people forget that detail because either they have never known better or have simply forgotten over the years.
CS is not the same game it once was and I am not sure it is for the better at all.