Glory - KISS, as the previous poster concisely expressed, is the exact opposite of the wiki's current approach.
At the most basic level, the wiki colours are the opposites of those used in the game. How this is supposed to be good by anyone's standards should be baffling.
Beyond that, the ONLY context the game uses + and - signs is to indicate weaknesses or resistances in 25% chunks, eg. (Toxin symbol)-- means 50% weakness to Toxin. Notice in this case that the wiki doesn't even get the signs right as those too are the opposite of what the game uses.
I disagree with a lot of design choices the developers of Warframe made, but that's one they got right. Does it not make sense to follow the game's design for the sake of the user's understanding of the wiki?
Take this page as an example, the type effectiveness section for instance. It says Weak Puncture +25%, Electricity +50%, Radiation +25%. Again, the fact that those values are under a section named "Weak" renders those + and - signs redundant. Ditto the Resistant section below that.
What you're otherwise saying is similar to claiming that stop lights should be green and "go" should be red because green is safe and red means danger. "go" is green because it's safe for the cars of that lane's light to go and "stop" is red because it's a different lane's turn to go. You might be a pedestrian but that doesn't mean the traffic lights should be used to tell pedestrians when it is or isn't safe to cross.