@Foxfyre,
Thanks, Fox, for pointing that out,
ironically I was taking it... personally.
There ya' go.
To me it seems the insistence on being hurt
is almost willful, when it has been said at length
and over and over again that
the function is not personal,
except to tailor one's closet.
To use the marker as a grudge system
is against the community aim,
though that will happen with the immature;
the mature community will vote for other reasons.
Even the hand on an individual post can be
to keep clouds of anger from rattling the voter's
own mental cage, possibly for a short time,
as one can always select the post back, when
reasoning reappears with calm. In that case,
the "collapse" would be done to
not hurt someone.
Some people, including myself, can be disruptive of a
thread's flow. Or worse than disruptive. The choice to
tune out those post is useful when a reader wants to
follow key arguments.