Well I've read other people writing "check PMs" or "PM me" before, here or at cd.com.
Anyways... why is that so important casino?
The point is that putting "check ur PM's" at the end of a message is uncommon, even if it's not too rude. However, a post which only serves to ask someone to check their PM's, is unneeded and irrelevant, and, like SoulMonster said, diminishes the value of the board. When said post is also asking members of an an internet gang (or family, as you and the mafia call it) to start harassing arguing and with another forum user, then it becomes e-bullying, and unnacceptable. That's why it's so important.
There are worse things happening in the news section like... abaraxas. He is always off topic and only comes to the main section to bitch at Warchild and to support dave
. I skip his posts here, while he posts funny stuff in the flamepit and in the whatever sections that I don't skip.
And yet I don't think you've ever had a problem with W/C being off topic, have you? You're right about the difference between this section and the flamer section, though. The news section, or the world news section, are for discussion, and treating people respectfully. However, W/C is one of the worst for that. He turns otherwise amicable threads into arguments, and then creates threads on an issue just so he can bash a user for posten an opposing viewpoint.
Here in the main section I skip both you and abaraxas, because I don't recall any post from you 2 contributing to the threads discussion ... like the interview, or the tour rumor where your only post was an attack to WC instead of making a comment about the possible tour.
Hold on. "My only post in the tour rumor thread was to bash W/C"...

I have no information on the rumor, so I had nothing to add to the conversation, and I just read the thread with interest. Everyone in the thread was discussing the possiblities, including Dave, and everyone was being civil. Then W/C and some other guy posted:
Will this be ok with you? Or will you find something to bellyache about?
HA...... I am betting he and his alter ego will whine and complain some more :'(
w.
To SLCPUNKTr not to be such a dick about it,ok?
dave has done good for everyone here,dont make a cock of yourself over it...
To AbaraxasSure he has,if you are into dual personality whiny little
conchudos :'( Why would he care about a possible tentative concert when he hates the music?? Boludos....
w. 
And then I replied:
Oh for fuck's sake. Why do just try to cause arguments.
You're both pathetic.
And after reding all this, you accuse
me of bashing?

As much as I find you and abaraxas almost funny in the other sections, I find you annoying in the main section. But I don't waste time complaining. 
But you do complain, which is why we're having this discussion.