Rotating decoration on gallows f42v

[MarcoP]

I see no problem with the idea that decorations make reading harder. A reader who knows the language can easily guess the intended character by the context, even if the decoration makes the symbol ambiguous. In particular, ambiguity between only two options is totally acceptable. Consider the amount of ambiguity introduced in some gothic scripts for the sake of elegance (this is You are not allowed to view links. Register or Login to view., but it gives the idea).

One of the manuscripts mentioned by Ellie (You are not allowed to view links. Register or Login to view.) exemplifies how decorations interfere with the readability of the script.