Forum adverts like this one are shown to any user who is not logged in. Join us by filling out a tiny 3 field form and you will get your own, free, dakka user account which gives a good range of benefits to you: No adverts like this in the forums anymore. Times and dates in your local timezone. Full tracking of what you have read so you can skip to your first unread post, easily see what has changed since you last logged in, and easily see what is new at a glance. Email notifications for threads you want to watch closely. Being a part of the oldest wargaming community on the net. If you are already a member then feel free to login now.

New FAQ is New:
https://www.warhammer-community.com/2017/07/02/warhammer-40000-faq-now-available-july2gw-homepage-post-1/

Q. Monstrous scything talons say that if the bearer has more than one pair it can make one additional attack. How many extra attacks does a Trygon, which has three pairs of monstrous scything talons, make?
A. It makes a total of one additional attack.

They outright answered the wrong question.

They answered "Do does a model with 3 pairs of monstrous scything talons get +2 attacks instead of +1".

When the actual question asked is "Does the +1 attack for having 2 or more pairs of scything talons apply to each pair of scything talons that is used to fight in close combat."

Nobody ever thought a trygon should get +2 attacks. They think each pair of scything talons that is used to fight gets +1, which applies to every single tyranid unit that has 2 pairs of scything talons and remains completely unaddressed.