He may be speedy, small and stealthy (thats another thread but not here, not now, not by me), but what he surely not is is evasive.
Try it yourself: Move forward, and strafe. you strafe that slow that you are dead meat before you realise that you move with max 25% of normal strafing speed. whats up there? skulks want more side speed! even when they have to sacrifice the advancing speed for it - being able to dodge the fire is more important then getting the idiot with the gun (ever tryed to run out an hmg?).
With celerity is the effect even more noticeable, imo.
In NS1.04 i edited the side speed, but afaik it got locked the week after that through the release of 2.0 - also, the thread i made about it is gone for some reasons.
whatever - i request, that the locked value of the side-speed is improved while the overall speed is kept the same.
as far as i remember, the HL move speeds are just %-priorites. the higher, the more speed this commands get. you can i.e. set strafespeed to 0 and are not be able to dodge-advance while you press forward/backward - but when you let loose of the +forward key, you crash into the next wall on your side (when you have pressed strafe before).
<edit: [i] is not closed by [/b]...