in reply to Re^2: PM Leveling Guide.
in thread PM Leveling Guide.

And avoid "Re^4" or deeper replies because, with PM defaults, you have to click again to see them and many people are too lazy to do that.

To illustrate, notice that this reply is "Re^3" and so may receive stray up-votes from those who "blanket vote" all replies to a node in a single go, without the bother of having to click again to see deeply nested replies.

BTW, avoiding deeply nested replies appears to be a speciality of sundialsvc4.