Questions tagged faq are semi-official and should contain reliable and high quality content.
However, here on Meta Stack Exchange, as per policy, all of them are also marked as Community Wiki, which means that any user with at least 100 reputation (even a brand new user who just joined the site and has the association bonus) can edit them without review, and this can lead to wrong/bad content.
Take this edit for example. User "added a new question" to the FAQ, which also happened to already be answered in an existing section of the FAQ. This is utterly wrong. It took over 20 days until someone spotted this and rolled back this invalid edit.
I don't blame the user who edited, they are new to the system and have no idea how it works.
That is why I suggest that on questions tagged faq, the expanded editing privileges conferred by CW status doesn't apply, so users without the full editing privilege (<2,000 rep) won't be able to directly edit the question or any of its answers, just suggest edits.
This situation can't be resolved by simply removing CW status on FAQ posts and recanting the policy that requires them to be CW, as one of the reasons it was put into place was because FAQ posts are community-curated and no one user should earn rep from them. However, it has the added disadvantage that unfamiliar users can make bad edits, as what happened above.
The faq tag is a moderator-only tag, so it can't be abused by regular users to prevent edits to non-FAQ posts.
On per-site metas, users can't suggest edits, so making the FAQ questions into CW is required to give low-rep users the ability to contribute. I prefer not to interfere with that, so this request applies to MSE only.