In short, I think the tax is okay, however I don't think dev time should've been wasted when the community as a whole was so divided towards it.
That being said, I think a great money sink would be to add a cost to Mithril Seeds @ gamble via a shop.
Right now there are two ways to get mithril seeds:
Why not put a store at gamble for people to buy seeds at? Somewhere in the range of 500k? It would be a brilliant money sink.
Omi already makes donation money from people buying the dice bag, and I don't see much reason to keep mithril seeds in the shop to be honest.
Helping the economy will prolong the server.. unless it just needs (dun dun dun).. more IRL money, which I'm 95% sure is not the case.
This would be a much better option than a TP tax which will just widen the gap between the very rich and poor.
What do you think?
Any other ideas for money sinks?