I don't know why you got downvoted but Haskell also gives excessive freedom for infix operators with adjustable precedence, ability to make up new operators etc. and a lot of libraries use such operators excessively so I think you are right. Come to think of whenever I need to write a PEG or use a not-so-common typeclass I need to open documentation to see what juxtaposition of ascii characters to use where. On the other hand, I think the expressibility outweighs the cognitive overhead in case of infix operators, especially when using relatively common operators (Scala kind-of has a similar feature and I (ab)use it frequently and it is nicer and closer to math when combined with Unicode. Closeness to math is an important feat. when translating academic papers into code or vice versa).