This is something that really bugs me. I feel like the pug community wants to just roll into a new raid the week its released, and be carried to kills with little to no wipes. And then, when they get to the last boss of a raid, they feel entitled to get in and get a kill off the backs of other, more skilled players.
Faking achievements is one thing, and I think its deplorable.
Whining because groups wont take you because of: Ilvl, achievements, or any other reason is another thing and is just plain entitled behavior.
Why does the pug community not want to join learning/progression groups (especially if they don't know the fights themselves, or maybe have little experience on the fights) and instead always either look to be carried, and if they arent being accepted to more experienced groups, they whine and cry on forums and in game that "we aren't being treated fairly / right because everyone is "always" looking for more experienced players"
I know not all pug players are like this. I know there are several out there that will take the time to learn the fights in pugs and eventually down every boss in a new raid, and to you I say good on you! But the vast majority seem to be entitled snowflakes that think they should be brought to all groups they apply to just because they can breathe.