What do the usernames in the title mean?

disi

e.g. here

Sadako · Posted: Fri Mar 06, 2009 12:14 am Post subject:

This is just an OTW thing, where if one particular poster posts the same kind of crap all the time, then when another poster posts something similar they "tag" it with the username of the guy who usually posts about it.

The "rules" are a little muddled, and it's mostly just a running joke anyways, but here's a thread related to the whole thing.
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"You have to invite me in"

disi · Posted: Fri Mar 06, 2009 6:55 am Post subject:

I see, some kind of news feed

Naib · Posted: Sun Mar 08, 2009 12:21 am Post subject:

kinda
It all sort of started with plbe always posting newlinks. no additional content and the joke stuck
So people started [plbe] in the topic if it was a newlink

Its kinda expanded over the years (with a few threads suggesting what user to tag a thread)
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