They do share gear with Nin, but if you look at the gear since Nin was released SE has gone and added Dex to all of it. Most those pieces that use to be Mnk only originally only had Str on them.
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looks pretty descriptive to me... when i first started took me all of 30 secs after seeing the descriptions to figure out what they each did... only thing i would like them to add is maybe more info. like for str how much extra damage it causes for each point. or for vit how much extra hp doe sit give me.
http://puu.sh/jd6UC/7dfd0d70c5.png
http://puu.sh/jd6XC/edfeaac3a4.png
There's no room for ambiguity when it comes to those descriptions. I'm not sure how you can confuse arrows or gunshots with magic damage (unless you played Elsword where punches are magic damage and lasers are physical...). Even if that was the case, dex is present on your weapon, not intellect
Just a side effect of how they let the gearing process of NIN gear pre-2.4 progress. It was either have NIN share pre-i130 gear with BRD, with MNK (by adding DEX to their gear, mostly useless to MNKs besides Parrying), or create an entire line of gear just for NIN, and they chose MNK.
Not to add to insult but... http://puu.sh/jdiDK/6f7061cb53.png MCH traits have things like "Enhanced Dexterity" Which means they do in fact require dexterity. The same traits are on all jobs with DPS jobs having their respective stats, DRG, MNK needing STR. BLM,SMN needing INT. And finally NIN, BRD, and MCH needing Dex. When in doubt read the traits that's what I say.
As brutally sad (and hilarious) as this thread is, he will be Lv60 in 3 days and joining your RavEX farm party in full i180 gear.....with Vit accessories
You can't really expect a question you can easily find the answer to by hovering over a stat in the character screen to be taken seriously. Confusion can happen, but there are limits. I would call it a somewhat successful troll.