Oh, I know about all of that. I was just thinking about making one for others, since a lot of groups I've joined to try and do Floor 200 clears don't have much knowledge of the floors past 101, and the information about bosses and mobs to watch out for on 151+ seems to be limited. There's a couple people who have noted to watch out for things like Chimeras on floors 181-190 and such, but a lot of the mobs I've found have the potential to one-shot you (or just hurt A LOT) were just from my own encounters with them. I just thought it would be useful to have something out there saying "Hey, on this set of floors, watch out for X Monster, because they do X Attack that has the potential to end your run if you don't handle them correctly."
Knowledge is power, and I think just being armed with the knowledge of what to look out for on certain floors is a handy thing to have. Because it allows you to be more cautious and aware, which can allow for a greater chance of success. :3
The thing is, though, is that in each group I was in, those who were NOT new to it were the ones dying first. Ironically enough. While I was going through just leveling MCH, I ended up soloing her fight twice. I died the first time because she kinda hurts, and my max-potions were on cooldown, but I managed to beat her the second time. Hopefully this doesn't come off as elitist sounding, but is it really that hard to dodge the bright orange circles?
It didn't really help for one group, the PLD and GLA I was with were arguing over who should tank her: PLD with sub-30 aetherpool or GLA with 70+ aetherpool. That was probably why both of them died, since they were too busy arguing about who would be MT rather than paying attention to her. It's just, I never had so much trouble even when the content was new, and when 3/4 party members were new. Maybe people weren't paying attention to my chat explanations. Idk.