I have seen people use them. I have seen people dismiss them.

What is your current stance on poetics tomes?

For me, I still use them for the following:

1. Gearing up alt classes below 70.
2. Buying and turning in shire accessories to GC for GC seals and FC points.
3. Relic (Zodiac and Anima items, though I just put them on the side until I need them).