That's the direct consequence of the "advice" in these threads.
A pretty simple chain of events:
1. I'm 920 ilvl and have never seen these bosses but I heard they drop nice loot so I want in.
2. Most groups require 950 which is higher than what the instance drops. That is ridiculous, surely the instance is balanced for a group 15-20 item levels below what it drops. Yet raid leaders ignore this fact and decline my applications.
3. Let me express my righteous indignation on the forums. Oh, create my own group? What a brilliant idea!
4. I will make my own group, with blackjack and hookers. 915+, everybody's welcome.
5. Oh, we wiped on the first boss? Strange, the early bosses are supposed to be a freebie. Let's try again. Wipe again? People leave the group? Surely just unlucky, let's try again. Same result.
6. Appears that while raid are tuned for a relatively low item level, playing at this item level requires communication and progression. Turns out pugs don't have patience for progressing and don't even speak the same language, much less willing to join a voice com.
7. If only there was a way to increase the chances of my groups succeeding. Oh, overgearing content and previous experience and knowing the mechanics going in gives better chance at killing the bosses?
8. LFM Antorus 950+ Link Curve
The only thing we achieved by this repeated advice is that most "raid leaders" in pugs nowadays are 920 with no idea how to raid lead or how the fights work.
I can't see any correlation at all.
Do you think that an applicant with no education or experience is more likely to have a nice personality or be a team player? Why would that be?
First paragraph is just absurd - do you really think that a random person with no education or experience in the field is going to perform their job better on average?