I stopped playing around 2013, only logging on for December 18th till recently, when i wanted to rejoin the game properly.
I've found it to be very very difficult to actually partake in the actual trading aspect of the game. I used to have a very good grip of the old Rares list, which I understand is subject to change, especially with recent rarity changes.
Now there is no cohesive guidelines for value of any pets, the ways people value pets are based on equations that are not easily accessible (i've been trying to find the 'non' equations for weeks now).
The beauty of the old rares list was every list was tiered into several sub tiers per list, but every modern list groups tens to hundreds of pets in the same tier, which makes it near impossible to trade with someone as they will value their pets higher/lower regardless of sharing a tier.
The inability to sort pets in groups by rarity/year/species is very frustrating, having to click through every page and specifically selecting pets page per page to move is tiring.
While the new rarity system is a step in the right direction, as a returning player, or a newcomer, the main aspect of this site is made almost unplayable. The FTT is flooded with people wanting help, with very few people being able to help due to what i can assume is due to the ambiguity/number of the lists.
If I were a newcomer I would be completely out of my depth, almost all the pinned guides are very out of date.
Trade rules while the idea of being customizable is to customizable, no one wants to read a 2 page block of text. Having select rules you can pick from a selection and maybe a few 'dreamies' you can pick to be displayed in your rules is all the information really neccessary.
I really think the site needs a overhaul to groups and group management. I don't know whats to be done about the mess that is the various rares lists. But its pointless to do any trading until something is done about it. Yes i am aware demand is a factor.
There is also no easy way to find other people to trade with, the forums and recent posts bar are slow moving, and repeat the same members.
These are just some thoughts. I would be curious for other peoples input.