True if you are trading you can see if they have bring the correct items or no items to make sure you don't get scammed! Would be helpful!

 

So people can see why this will probably never happen.

 

Here's what i'll say...
I do like the idea of having logblock, but with the glitch/bug/or whatever it is, it's probually not going to happen. If we had something less annoying like a sponge block or something, but I don't know if our dev is allowed to change another person's plugin.
For the /invsee, just remove it for normal players AND donors, since it'll just cause more problems with donors having a strong "advantage." It'll probually promote spamming, annoying other players, and probually flood the chat if word spreads about that person having diamonds or grass blocks and stuff.