Yes
No
+1 for bringing this up again
A couple different types of small signs would be very easy and quick to code. Would help tribes in that each player's tent house could have their name in front and would also help them organize storage areas. You should definitely be able to type your own message into the sign, but have a profanity filter in place to keep people from typing ridiculous things into it.
*edit for new idea*
Maybe also have a way to have a larger sign at your City's entrance with the name of the city/tribe?
I could live with just small signs that only had about 10 characters in the length as a starter. However I do like the idea of larger signs but make it such that it can only be placed in zones not out in the wilderness.
I would perfer that homesteads didnt have big signs its a bit of a immersion killer but I can just see the QQ over disallowing signs on homesteads would create
Signs make sense on Tribal grounds or homesteads. I would also like the ability to name buildings and baskets.
Signs for the storage areas is a good idea.
I don't know about your area but ours quickly gets out of control. People start to put loot/stuff anywhere the find a space. I have tried to organize the storage bins by Type = grass here, misc scav items there, metal parts over there etc = it ends up being a mess no matter what method I have tried.
Signs that actually SHOW the tribe member Where to put items would be a big help!