It might be embarrassing to admit but I use 'threads' as my bookmark service - if something was engaging/striking/funny enough for me to comment on, then I want to come back to it.

At some point I will write a thingy to go grab all my old comments but for now HN is more useful to me than pocket / delicious etc.

It turns out to be a useful heuristic - the mental process that says "I should store that for later" fails far more often than "that is something I have something vaguely useful to say about".