Yep, I suck and I can't play at all. I can't do any of the things you can. I have a focus macro, but it is in the main macros. Every one of my main and alts use the same main macros. 1 for accept and 1 for focus. Holy dang, 2 macros in general, not char.
1 for heal a target, 1 for chain heal
1 for lightning bolt, 1 for chain lightning
1 for shocks, 1 for earthshock
1 for attack/weapon buff, 1 for totems

You need a macro for res? You can't be in combat, so you can't need to hurry. You really can't click a button every (how often do your guys die?) 3-6 hours?

Fine you can macro dancing or prancing or whatever you want to do, but that can be a general macro, not a char one. I use HotKeyNet and it lets me type in a command, so I just push my hotkey for the command (ctrl-home) and it opens up a command line that I can type in ANYTHING I want and all the chars type it also. So I can push CTRL-Home and then type /dance, boom, all dancing. I can push CTRL-Home and type /camp, boom, all logged out. CTRL-Home, /exit, all WOWs gone. I wouldn't want to do a macro for every emote that I would want them all to do. Just seems wasteful.

Macro for mounting/wolf/fly? Sure I guess, never had a need to do more than mount. Guess I didn't care if people ran from me and had to run them down in wolf so I could prove I was amazing. I just use my mount on a hotbar and then push a button.

I don't use macros for spells that I just cast the normal spell. I just put my shocks/totems/etc on a bar and map a key to it. One char has different shocks/totems/etc in the same place, so one push and you get all the chars to cast whatever spell you wanted. No macros needed. Maybe I use 12 keybinds, but I use about 8 macros and that seems WAY less than the 16 they give you. Do whatever works for you, some people were just offering ideas on how deal with only 16 macros.