Earlier quoted context omitted.
The thing is that a lot of what I post online is either directly or indirectly related to my day job. So I've always figured if I was going to have a moderately high profile public presence anyway, it wasn't worth maintaining a separate identity.
That makes a lot of sense. My case is different. When I've run my own companies, I'd post stuff online related to that. But even then, it's under a persona -- I feel it's even more important then, actually (I also use personas in real life in that circumstance. It's very useful to be able to identify as the secretary, the sales guy, whoever, in order to dodge time-wasters such as salesmen.) But if I'm working for som…
Obviously depends on the company and role. I was hired in part because I had a pretty big online presence on tech topics. (In part, I was writing for CNET at the time when they still had some enterprise computing coverage.)