As a player who just tipped their toe into the Noble Citizen realm, I have a suggestion.
Currently, the cost is $5 a month for each account that is Noble. With the game a bit geared towards multiboxing, that $5 a month can quickly amount to $20-30 a month based if you run 4-6 toons.
I would suggest to see if a compromise can be met, in the realm of say $5 a month per account or $15 a month for up to 6 linked accounts. To be honest, the idea of $30 a month is quite steep for a casual player as myself. I love the updates that the Realm is seeing and the direct interaction you can have with the workforce behind it, but $30 (or even $20) a month is not sustainable to grow the community.
$15 a month would keep this game in-line with other MMORPG's such as WoW and FFXIV. Asking more than that to at least be on the same playing field as other people who run 4-6 toons may push casual players away that are on the fence to becoming a Noble Citizen in the first place.
In summary, if a system is put in place that allows some cost savings for multiboxers, you may be able to grow the support of the casual players who are discouraged of spending so much money per month to support it.