In the last (big) update, special containers of characters from the skill tree were no longer possible to open if you did not have the perk associated with them. This was of course a very good change, because now you can't quickly take a perk to a container just to make it and then get rid of the perk. This also shows one of the main aspects of the skill tree in general. Namely, skills and items that characters cannot use if they do not have the appropriate perk activated.
Unfortunately, some items can still be used without having active perks. So, as I wrote in the title of the post, I'm going to list these specific items.
WOLFGANG:
•Thermbell
•Firebell
•Icebell
(Other characters can't use them, but Wolfgang without perk can)
•Coaching Whistle - Although its effect doesn't work when used by other characters without a perk, but any character can still whistle at it. It shouldn't be usable at all if you don't have a perk. The same way Winona's handy remote works, for example, which can't be used without a perk.
Wendy:
•Wraith's Wreath (Any character can use it. Including drinking elixirs)
•Ghastly Experience
•Luminous Wrath - Because it works without a perk, you can do a combo like Shadow Abigail with a lunar elixir effect.
I don't think that's intentional.
•Cursed Vexation - Same thing here, but in form of Gestalt Abigail with the shadow elixir effect.
(Other characters can't use them, but Wendy without perk can)
Woodie:
•Hardwood Hat
•Wooden Walking Stick
(Any character can use it)
Wigfrid:
•Elding Spear - Any character can equip this item. It shouldn't be that way. Without the perk, the spear shouldn't be able to be equipped.
•Commander's Helm (Any character can use it)
•Battle Saddle - Any character can equip this saddle to a beefalo and ride it while it is equipped. Both of these options should be disabled. You don't have the perk, so you can't ride a beefalo with the battle saddle equipped.
Winona:
•Rose-Colored Glasses (Any character can wear it) - You shouldn't wear them if you don't have a perk.
•Portasol (Any character can equip it) - Even though characters without the perk can't use the portasol to teleport, they can still equip it. They shouldn't have the option to equip it at all.
•W.I.N.bot (Other characters can't deploy it, but Winona without the perk can) - This shouldn't be the case. If Winona doesn't have the W.I.N.bot perk active, she shouldn't be able to deploy it either.
•All Winona portable structures (Teletransport Station, Catapult, Spotlight, Generator, G.E.M.erator) -Case is the same as with W.I.N.bot. Winona, despite not having an activated perk, can still place these portable structures.
Wormwood:
•Syrup Of Ipecaca (Any character can use it) - Any character can feed it to a mob or eat it themselves. If it were possible to code it, then characters without a perk shouldn't be able to feed it to mobs or eat it.
Wurt:
•Skeeter Bomb
•Fertilizzzer
•Blood Shot
(Any character can use it)
•Communal Kelp Dish
•Superior Communal Kelp Dish
•Shody Tool Shed
•Less Shody Tool Shed
•Armermry
•Superior Armermry
(Other characters can't use them, but Wurt without perk can)
Walter:
•Flutter Strip (Any character can use it) - In this case it is rather intended that every character can use this item since there was a change at one time where the item only gives sanity if you have the perk associated with it. However, I think this item should not be available to all characters. Only Walter with the activated perk should be able to use it.
So that's all I wanted to say. Thanks for reading the post.
I am also attaching a screenshot of all the items and structures mentioned here in case someone doesn't recognize them by name.