We also encourage (though certainly not required) anyone using multiple accounts to volunteer to have those account names be recorded ...

Just record/link me, @jaki01, together with @kobold-djawa (my wife). Most of the time I use to play with both accounts at the same time, not with the aim to play against each other but just to save time (it's much faster to start them parallelly instead of consecutively when doing the quests). Good if the system prevents them to play against each other.

Removing Guild-Based Restrictions

That sounds really good, because I like to be matched with many different great players (even if then I might lose more often) to learn and have fun.
Recently, being member of the "Immortal Gods" meant to be excluded from matches against nearly half of all top players ...