I doubt it is just me - I often can't type a space in a post, the space bar is simply ignored. If I go up to the address bar and type a space in there, than copy it into the post, spaces will be available again. Only happens in Chrome, but it happens with different computers in different locations (just happened in Chrome a minute ago, while at work, and the same thing happens at home). I think it has something to do with the software used (vBulletin?) - same thing happened to me recently in a different forum, also using chrome, that uses the same software (same "V" symbol on the tab in Chrome). I've never had it happen using any other combination of browser/forum software.
I noticed that too, started about 3 months ago. It happens on my pc at work and my laptop at home..
I thought it was my internet service screwing with me, you know...give me more money to make it go away.
Hope Chrome fixes it soon, makes me a bit angry..