I dont blame everyone for wanting to leave, the situation has become quite toxic due to a lack of respect and maturity from several parties.
While I agree with most of what you said Werdna I have to argue some of your points.
Firstly sanwi is an outsider, as is goldminer. Both parties relinquished any rights to the city the moment they left, property rights are serious business however there is precedent for ownership of citys to pass from their origonal founder due to abandonment, petty arguments with leadership, or civil war.
In the case of dumathoin as far as I can find evidence for, control of the city was passed from goldminer to yyjjgg after he abandoned, later yyjjgg passed the city to ryden of FAGT for safekeeping. FAGT announced it was annexing Dumathoin peacefully, along with stoneark. As nobody publically objected to the announcement, the last leader gave it away, and there has been absolutely no contact with any former residents in any official capacity representing dumathoin that all makes strong evidence towards the legal owner being the alliance of FAGT.
For anyone who is wondering, FAGT was later renamed UIA, then recently they dropped grundeswald from teh alliance, and renamed the alliance DATASS, Commonwealth also joined up. Sanwi is the leader of commonwealth, and depending on how the alliance has been documented, what rules exist and etc, it could be argued that Sanwi has equal say in anything related to DATASS lands as llShadyguyll or indeed any other leader of teh alliance. The current residents asked permission from the legal owner of the city, who gave us his blessing to inject some life into the city as it was dead, wasted, and being griefed little by little. Ryden saw an oppertunity to have a new potentially great city and neibour on his doorstep, an ally and possibly a great boon to the alliance. I'm sure he didn't forsee this kind of trouble starting. We voted tahu as our leader and goldminer has shown him exactly zero respect, despite the seemingly positive relationship he developed with other bay12 residents, myself included, well disrespecting my leader is also disrespecting me, and while tahu acted rashly and agressively he was only threatening his city and people from outsider aggression. He was bullied and shit on since goldminer returned, despite us extending an olive branch and making concessions to the EX-king, he only partially recipricated and completely failed to show any reference to tahu.
Other points I will rebut in less detail due to a lack of time.
Snitched by tahu? well the city's only defence is snitches right now, barely anything is reinforced, theres no active presence, and nobody is geared. I admit tahu neglected to inform most of us about the snitch network, but it makes sense to not include goldminer as he was an outsider who never proved himself trustworthy, and in fact probably can not do that now.
Civcraft does have a heavy mumble presence, but civcraft was always a reddit server is is still primarily on reddit, mumble is good for groups to communicate, however reddit is where important discussions take place, laws and legal rulings are recorded there, alliances are noted, griefing and pettuy arguments go onto reddit, it is on reddit that the legal framework of civcraft is upheld, and it is on reddit that I have not seen a single sign of goldminer.
As it was entirely my idea to to 'invade' civcraft, I feel somewhat responsible for this mess, though it was murphyslaw's idea to return to dumathoin. As such if the consensus of bay 12 is to leave I shall join you, despite my longing to work on this fortified mountain kingdom. Don't worry gold I will finish the dome, It's the least I can do.
If we're still in the mindset to live like dwarves I know the perfect place, gohkamikazi would welcome more hands to carve out 'his' mountain, however unlike dumathoin Abyssi is totally out of the way, unlike here where we have easy access to the cic network and our allies. And I include Sanwi as an ally despite what happened to tahu.
Edit: There is a potential problem however, Abyssi still has an uneasy truce with soapbucket, soap's settlement is still occupying land above abyssi's outskirts. And tahu was present when bounty hunters kicked soap out of abyssi, he took several brew stands which we may need to give back to make peace if we settle there.
Otherwise, we could always settle elsewhere in the area, perhaps north of Titan? I'll speak with shady and see if theres a good area going unused so we can remain near our allies.
Edit 2: Oh, also fitting the underground theme and being nearby and a DATASS member, there is neverwhere.
http://imgur.com/a/lOG8H#0 Check it out, seriously, it's gorgeous.
Underground done right.