Yeah, as others have pointed out, there are a number of third-party scripts you can use which fixes the problem.
But it’s one of those things where the developer should really add the feature themselves. Not everyone uses forums and very few people are familiar with using scripts with their browsers.
The one I use is this:
https://greasyfork.org/en/scripts/23696-wanikani-override
It allows you to ignore incorrect answers. They won’t count as a pass or a fail, but instead be pushed back and come up again again in the same review (to be clear, without dropping SRS level, and still rising should you get to second attempt right, which you really should unless you have the memory of a goldfish).
I use this all the time. There are tons of times where I give a synonym or a phrase with the same meaning but it doesn’t get accepted. For example, earlier today I put “crazy for” for 夢中, but WK only has the answers “crazy about” and “mad about”. “Crazy for” has exactly the same connotation. There is no way I should be getting a fail and getting the item deranked, clogging up my queue with something I know the meaning of.
This also happens with transitive / intransitive verbs. WK is inconsistent, sometimes using the form “to x something” for transitive verbs, and “to be x’d” for intransitive verbs, but sometimes not using those forms (just “to x”). So using one of those forms could get you a “wrong” answer!! It is plain dumb that one needs to go to forums and learn about / download a third part script to overcome this massive shortcoming of the WK system.