Alllllllrighty then. Let's play English professor!
PVP and PVE gear are designed for their respective roles so when someone shows up with the other type of gear it can be a little frustrating to the other members of the team
So the first part of this sentence is called a "clause"
PVP and PVE gear are designed for their respective roles
So you're saying that PvP gear is design for PvP. Yup. You're also saying that PvE gear is design for PvE. Sounds good!
"So" is a conjunction that means, "And for this reason; therefore." Example sentence: "it hurt, so I went to see a specialist"
The word "so" is pointing to the second clause.
when someone shows up with the other type of gear it can be a little frustrating to the other members of the team
Therefore, this sentence could be restated as:
"When someone in PvE gear shows up in PvP, or someone in PvP gear shows up PvE, it is frustrating, because the gear wasn't designed for that role."
Woot! Almost there ...
An example of this would be someone showing up for a HMFP in EWH gear! Yayy. And because it wasn't designed for that role, it would be frustrating.
For bonus points, this example is called a "Reductio ad absurdum", which is used to demonstrate that a statement is false by showing that a false, untenable, or absurd result follows from its acceptance.
Of course, I chose specifically
to highlight that one sentence out of your post, as it is that exact level of elitism that I find abhorrent. If anyone cares about gear gating, look at the HP, Armor Rating, Primary Damage and Bonus Healing. It does't matter how much expertise there is on it if the other stats are adequate enough to do the job.
To insist otherwise on purely philosophical grounds "it isn't designed for that" is completely impractical.
You also say,
THERE ARE the people that think just cuz they have PVP gear they are capable of doing all end game PVE content
That may be true. Oddly enough, I've never
encountered that personally. in the several hundred pugs I've been in, those who showed up in PvP gear ware either a) actually capable of doing PvE content, b) better
at doing PvE content that the others in the pug, or c) willing to take advice to get better.
Edit: Of course, I'm not going to convince you to change your mind about anything. But sparring with you has been fun.
Edit Edit: Oh, and the rest of your post I agreed with. But that one sentence just set me off ...