If you want to have a pseudonymous presence online, it can be tricky. One way to do this is to use Reddit. Reddit, you say? Yes. Just ignore almost everybody else on there.
I’ve been following Edward Morbius on Google+ and he has convinced me that Reddit might not be such a bad idea.
Basically what you do is set up an account like /u/kensanata and create your own subreddit like /r/kensanata, and in the subreddit settings you set its type to “restricted: anyone can view, but only some are approved to submit links”.