Feudalism was built on trust.
Feudalism was built on power to control land that can generate resources which can produce wealth that can purchase more power to protect the land and possibly expand property.
Medieval society was heavily dependent on networks of people
Correct... but the second part
who knew and trusted each other
knew each other - mostly yes, but trusted - not at all... they formed strategical alliances to be stronger but their "trust" was built purely on temporary interests - mostly they depended of each other in trade in goods they needed and couldn't find anywhere else or they depended of each other in defense... but if by some chance they would find some other source to satisfy their needs they often in blink of eye betrayed each other... not to mention constant intrigues and conspiracies - more of them died poison by friends or with friend's knife in the back then by enemies in battle or of natural cause.
Anyone who didn't trust anyone, and made that clear through his actions, would soon find himself shut out of most real power.
They were very clearly showing to each other that they do not trust each other... It was not lack of trust that could strip one of power but it was any kind of showing weakness - actually, showing too much trust in someone was great weakness that mostly resulted with having a knife stuck in the back.
Considering
We are not particularly interested in making it possible for you to have 100% mathematically provable certainty that a given guild will never, ever be usurped from you by the person who founded it.
You obviously missed point of my feature request... It was never directed to ensure that given guild will never be usurped back by the person who founded it, but it was simply directed to allow that more then one person can found the Guild (or that more then one person can be appointed by the Founder to be considered as Founders as well).
OOC speaking - imagine that you want to found a bank with a partner and both of you will invest 50%-50%. - Would you ever consider to invest your money for the bank to be founded in his name? Or do you think that he would ever invest in it just for it to be found in your name? Or it is maybe the most likely that you bough would insist to be listed as legal owners? And imagine then that in couple of years you decide to sell your 50% share to third party and retire... Do you think that the third party would accept to make investment without being officially listed as Co Owner or if he knows that you can at any time simply reclaim your ownership and remove him without any compensation? That is not be matter of trust or distrust but of bare reason...
But if the game mechanisms are deliberately directed to enforce people to IC trust each other even about matters where OOC would never be place for trust... fair enough...
