It is a god way to detect them and blacklist/kick from party. :P
The major fear here is not having or not parsers. The problem here is the creation of a DPS obsesed community. Parses has pros? of course. But the problem here, and I think people is ignoring it deliverately, is the creation of this DPS community.
Think on the speedruns. Speedruns has becoming the usually strat for almost dungeon (with excetions like low level dungeon, and even here I see peopel trying to speerun it), ignoring mechanics like kill adds or avoid damag to be able to finish quick. Meybe beause the dugeons does not offer actuall challengue, ro the community is just impatient, whatever, is not the point here. First, the Speedruns was a thing for some people in determinated dungeons (remember the infamous Blayflox Hard), but little by little, it started become the norm, the only way to do a dungeon, to the point that on every roulette people is doing it, even if new people is running for the first time, they jsut ignore them and demanding big pulls, and sometimes, get angered because someone refuses it. This is the common thing in dungeons/trials now.
You can extrapolate this to the parses. At the beggining, parses are used in a specifics things, like DPs improvement for some people, Ex primals or High level raiding, but little by little, this will be extend to the low level content, people will start demanding a specific number of DPS (like they started demanding speedrun). In the beggining, will be 1000 of this kind of palyers, then this palyers become 2000, then 4000, then 10000, then 20000, this will extend to all the game. Then we will have a new rule. Dungeons/trials must be done in X time, and also, people must have X DPS or they suck.
Now, think on the casual palyers, This ones can improve, but some of the, just no, doesn' have time or they jsut want run a dungeon and do others things. This casualsprobably will rerepsent the 50% of the total players. Do you think is a good idea harras them in this way? If they see the game turn into a DPS race, they probalby won't continue playing. THat's less moeny for FFXIV. Guess who will pay the consequences and who will lose content...
This is the problem I see. Not the parser itself, but he fear to turn the community into a Parsed obsessed one, like happenend in other MMO before.
Now, my question is, how can we stop the bad using on the parsers? How can we avoid turn all the content in a DPS race? The only possible way, is allow parsers only on determianted things, like preformed parties or high level content, and prohibited it in any other thing, like rouelttes. But, people is demanding the parser FOR ALL content.
For me, is clear. I like have a parser, but, I'm aware this will cause more problems than benefics. So, I say no or personal parser only for this reason, not because I hate parsing, but because I fear the game turn into a crap shit DPS obsesed.
I'm sure if this problem wasn't a thing, most people wil lagree on having it, becaus there was no problems and won't affect negativity to anyone.
PD: Sorry for my bad english.