Seems someone is ruffling some feathers here... and I think it's mostly a case of failing to communicate the severity of the situation they're coming from, which is resulting in jumping to some exaggerated conclusions.
To put it simply, the WoW community (outside of static-type groups) is in such a poor state that it's basically impossible to find an enjoyable experience without being lucky enough to find a group of like-minded individuals (usually a guild, which acts as both FC and static in WoW); you'll be blocked by arbitrary and excessive measures such as item level (often requiring higher than the rewards given by the content you're trying to clear), and even a completely outside-the-game rating tool which is used (quite literally) by 95%+ of the community. To join a random group is to put yourself at risk for being insulted & ridiculed for the slightest mistake; being told to "quit the game" would be on the mild end of the spectrum, far worse things are said without any consequences. So keep in mind, seeing anything which may represent the slightest hint of "elitism" can easily set some players off, because they're coming from an environment where it was wielded against them with impunity. This is also why a lot of former WoW players in FFXIV don't exactly have fond memories of where they came from, and may be a bit zealous in defending what they found here.
Imagine being unable to complete the MSQ due to how poorly the community behaves, making the required group content for new players a dreaded experience.
That is how broken the WoW community is right now, where the the only way to not go through a hellish experience is to find a static to do absolutely any group content. It really is that bad.
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In any case, this why I said parsers represent a slippery slope earlier in the discussion.
I've seen the deep-end of where they can go, and I would rather not see it happen here.
The current detente with them being permitted if the information is kept to the user themselves is fine, and we are still able to have reasonable discussions about what's required and what should be done. However, it's set-up in a way that the negative behaviours they can often spawn if left unchecked can easily be cracked down on by simply enforcing the existing rules; a pretty basic "don't make me come over there" situation, and it's working. The current stance of SE is that they want to foster a friendly and welcoming community; unfortunately, the nature of competitive environments (common in many online games) means a few people are all too willing to discard civility and courtesy to advance their own ends. Luckily, it's not them this game is aiming to cater to.