Here's what you can do.
Every time you happen to find an inappropriate answer, you can flag it for abuse or spam by clicking on that Suggest Improvements menu located right under the answer, and choosing Abuse or spam.
At that point, the answer will be automatically flagged and draw the team's attention.
You can read more on that here:
As far as reporting users, anyone who posts an abuse/spam answer will come to the team's attention via the Abuse or spam flag.
As a temporary solution until we get the change to remove such an answer, you could edit the answer to change its content and give us a shout.
Here's a list of what to look out for in terms of inappropriate content
PS: Do you have a specific user/answer in mind?