what they could do it give gear harder restrictions, they do this for tome gear why not all gear? remove the "all classes" tag and add hard restricts on the gear. like "doh"/"dol"
And put hard ilvl req on entry to all content, while giving gear sets via class/job quests. It may limit the glamour, but they could add level 1 glamour for this instead. I saw this a few times, but be smart. Don't name and shame people. Last thing we should be doing is witch hunting people under false assumptions.

Not everyone joins free companies or ask for help, they want to rush content to get to the stuff they want. They may not know "fending" is tank gear. Not all server novice networks actively invite people either, or replies questions.

The past few servers I was on, the NN was not helpful at all. They spam invite new players with out explaining anything, then bully/insult them for wanting to leave. (this was before the changes) The chat would be spammed with random chatter, in which questions got buried, or gave spoilers.

The free companies i was in were not helpful really. And 1 treated my g/f like garbage for asking tank help questions because she had no access to google.

So it isn't unheard of, of people not wearing the right gear because of not knowing, and wanting to do content.

Not everyone doing this is trolling, or trying to be rude. When i got back to playing last mnth i ran into someone with mismatch gear, in DD. I asked them about it, and they said they was new. They wasn't to sure gear up. Not all the tool tips are easy to read.

Look up strength tool tip it states: increases damage of gla pld cnj whm thm blm pgl mnk rogue nin lnc drg arn sch smn arc brd drk mch ast arms.

I kid you not. And if you are new to ff14, or mmorpg this may be confusing.