Hello,
I would like to suggest adding a feature into the online armory, that would after clicking on some character name show (besides his equipment, professions and so on, which it already does) also the names of the other characters associated with that account.
Reasons for it:
►Nowadays many people have bzilion alts and blacklisting/ignoring just one of them when they leave after the first wipe, ninja, or do the any other thing that makes them undesirable in raids, just doesnt cut it. This feature would allow determined people like me, to put into a blacklist all of their characters and therefore get ride of them once and for all.
►Consequently this might lead to better raiding experiance for the server population as a whole.
I think it would be extremely simple to implement this feature and the benefits outweight the small disadvantage, which is the lose of anonymity. (After all, people can still create multiple accounts if they really need to achieve it, so the option for anonymity is still there).
It is a niche little feature to be added to the Armory, just like Wowprogress has it, we could use a list of known alts.
One problem surfaces though, which would be somewhat of a downside is that you can only track alts that are on the same account, which can be confirmed by the same amount of achievement points present on the linked characters, a trick we use already to see alts if presented the possibility (aka; same guild or by chance).