I have a couple more things for the group.
First, please try to make use of the game system when possible. It is the intent of this game. I know some players/groups allow for deviations from the ruleset in the name of roleplaying, but I tend to take a different philosophy. If your character is supposed to be good at/know about something, then it should be reflected in the character's stats. In same games, the GM allow players to wax eloquently and accept those results regardless of whether or not the character actually has the CHARISMA or Diplomacy skill to support that. I do not. Instead, I view it as the PC thinking that they waxed eloquently when in fact they make have bumbled their words or be limited by their own stuttering speech or the like...based on the dice roll. After all, we don't roleplay out the spellcasting or the fighting to determine success, and I like to treat the rest of the system in the same way. This is likewise true for PC knowledge. If you want to know something, you'll need to make a knowledge roll. For example, Kazuyo posted "I assume Kazuyo will know the Shibata symbols, kimono patterns, banners, etc. and can recognize them if spotted". She'll need to make a knowledge: nobility roll. Bear in mind that knowledge is a trained only skill, meaning that only someone with skill ranks can attempt the check. Otherwise, you will only get very general information and not the specific detail that one may be looking for. Fortunately, for Kazuyo, she does have bardic knowledge class ability, which can substitute for similar cultural, geographical, etc. information.
Second, please do try to make the appropriate rolls within your post as you describe your action. That is, please try to not wait for me...the GM...to call for the rolls. This is a PbP game and it's slow enough as is. You may want to actually post once with the attempt and the roll, if you don't know whether or not it would be successful. If you do know whether or not it would be successful, I would suggest making a second post to reflect that result...to the extent you would know what it would be...as well This would help the game to keep moving. For example, Si just posted that he's going to "will mill about the general tavern/inn attempting to hear any chatter about recruitment for carriers for the gold/decoys". That's clearly a gather information check from the rules. He should roll accordingly.