The parse,for high level content has 2 utility,keep a track of your DPS to help you improve etc... and as a player filter,i will explain:

Several it happened,while recruiting or getting recruited for a static,they asked me if i was already in a group with parse,what for ? to check in FFlog,and i think its understandable,why ?

When you build a static,it can take a lot of time,getting the right people,testing people etc ....but sometimes you have bad surprise,someone who told you that he master his class,dosent master it at all,and you lost 3/4day to look for someone because you trusted that guy and didnt look for other people.

Looking to farm with random,you trusted them and ..... it disbanded 20 min later because it was far from it.

All of that to say,what FF need,is a ranking,filter,anything to help to see through the mass of player,to know what kind of player you are,and with wich player you could have the same level of playing,I can already see people insulting me of elitist etc ....

Why it would be great ? to be able to play with people around your level,like in PvP game with ranking taht put you against your player around your level,we need an system to help us play with people around our level,I wasted so much time trying static,just to leave them after because ic ould not find people my level,BUT be carefull there i dont say im a god like player or anything,very far from it.

Its just i crave to play with people with the same gameplay as me,that we understand mecanics at the same speed.
But in FF,its surprise time,you group up with random,hoping the farm will go great annnnnnd,disband after 30min.

To give you an example,i tried to Farm O3s for nearly 2 weeks,for 2 weeks i just ended in group that WIPED at the first holy blade,i know its human to make mistake,but when everyday you enter infarm group just to wipe for 40 min and disband,at the end you wish to find a good group.

In 2 week i wasted 10+hour trying to farm o3s,now imagine there were a info on people,anything to show me that the people with who i teamed up,are not very reliable,or anything,i could just quit the group,without going through the hour of wipe for nothing but wasted time

The parse do that function,not greatly but still,and i thinks thats what we need,something to separate player in "division" with player around the same skill.
Thats what do the Parse,but we need somthing better and universal.