1. The goldsmith has decided that only registered players could transfer coins.
This is to slow down the wave of players that wanted to create dummy players to send coins away.
If your email is not registered, there is a hint in the Town Hall, telling you how to do it.

2. This game will not allow name-changing. Changing a name will be possible in some rare circumstances, but it will not be available as a game feature.
In real life you don't get to change your name when you get bored. You can still technically change your name, but the vast majority of people do not.
So, until something is done regarding that matter, you could send Gatekeeper a letter requesting a name change.
In the letter specify the reason. I am bored with this name does not qualify as a good reason.
Most likely your name will be changed if it contains some spelling errors, or it's really cryptic. Otherwise, you will have to learn to accept your name.

3. Top lists
The way the game is built, you can find any top lists you want without me having to change the game.
If you want to find the best Arabians, click on Find Horse and select Arabian as breed. The result will be a list of Arabians ordered by XP.
If you want them ordered alphabetically, then click on the Name category and instead of XP, they will be listed by Name.
This goes for everything. You can arrange players by name, by age, by xp, by guild or whatever you can think of.
You can find the top players/horses, or the bottom ones.
So, please stop suggesting new top lists. They are already there, you just need to learn how to use the game features.