I've been asking myself over the past few weeks what the restriction for merging heroic IDs is for.
We play on EU-Antonidas, the German Alliance server with the biggest population.
A few weeks ago, when my guild was at 1, maybe 2, HCs there never was a problem to find decent replacement for our second raid night, even when we killed Animus the first night and wanted to do some heroic attempts on Qon. Yesterday I've been searching for almost 8 hours for a tank to kill Qon HC and to put a few attempts into Twins HC but there was not a single one who even answered to my desperate macro spamming.
I have a theory that this is because anyone who could kill Qon is already killing at least Jin'Rokh with any pug he joins, making him unavailable for our raid group.
And now the question is, what purpose does this restriction serve? What exactly are the advantages of disabling people who kill the first loot Piñata on HC to find another group and finish the raid with a few more HC bosses?
Maybe you know the answer, I don't know it and nobody in my raid group does.