I have noticed this happening a few times, and I am always baffled why it is allowed. Some new member or someone deemed unfit to give advice shares an opinion that goes against the grain, and people start making fun of them and dogpiling them for giving "wrong advice." Bonus points if they are not fluent in English because elitism about language makes it more fun.
This happened yesterday. It starts here #gameplay-help message. The guy gives a simple opinion based on his preference for PR1 ships (frankly an unimportant part of the game, and picking any of the ships to develop is whatever anyway).
It then gets latched onto and someone else disagrees. But that is not enough. They have to go the extra mile to "prove" the other guy wrong and insult and bully them in the process.
For comparison here is me giving 2 opinions (one where I recommend ibuki in pr1 #gameplay-help message, and one where I recommend zwei in perma pity potentially #gameplay-help message. Both of which would have been targeted by some "regular" if some newbie or outsider had dared to give them.
Then more people join in and the typical gameplay-help dog-pile happens with the insult added here and there. All because the guy dared to have his own opinion even though it broke no channel rule. The unforgivable sin was not giving "optimal advice."
Giving optimal advice has never been part of the channel rules afaik. Rule 5 specifically states elitism is not allowed and recommendations are negotiable. If you want "newbies" and "outsiders" to not give opinions and advice, make a specific helper role. Call it the Elite Council of Pricks or something equally fitting to how the people in that channel behave.
Frankly, it is getting embarrassing to be part of this community.
You guys should do better