In what way too intrusive?

for a definition of intrusive in this case

lots of posts, mostly, Plurk seems much quieter than Twitter, so am feeling like I am being "noisy"

meh, be as noisy as you want. I still think there should be a way to mark conversations to follow.

Oh, Nirak, me too - or a way to search for convos where you've already replied yourself

can do it by bookmarking them, but whos, so clunky