Do You Mind?

Today I'm asking some questions that I've been wondering about for a while now. Do you mind foul language in a book? When is it warranted? How much is too much? Is the presence of swearing enough to make you stop reading? I rarely read reviews on Amazon, but I've looked at a few recently and was surprised at the number of people that objected to "the F-word" and seemed to judge the book solely by what they considered bad language, without considering characterization, plot, etc.

Here are a couple from A Big Storm Knocked It Over by Laurie Colwin: 

I personally love Laurie Colwin's non-fiction food writing along with much of her fiction, and had honestly never thought of her writing as containing much vulgarity. I don't think I would actually read Go the F*** to Sleep by Adam Mansbach to a child, and the book may just be a gimmick, but it clearly expresses what every exhausted parent has thought at some point in their lives. There are plenty of one-star reviews for it on goodreads:

There is an app called Clean Reader that will remove profanity from electronic text. It allows users to search the text, and “put a non-transparent ‘highlight’” over anything potentially offensive. The blanked-out word is replaced with one judged suitably safe. I respect readers' rights and personal preferences, but this sounds dangerously close to censorship to me. E.B. White wrote, “vigorous writing is concise. A sentence should contain no unnecessary words, a paragraph no unnecessary sentences, for the same reason that a drawing should have no unnecessary lines and a machine no unnecessary parts. This requires not that the writer make all his sentences short, or that he avoid all detail and treat his subjects only in outline, but that every word tell.” Holy motherforking shirtballs (this will make sense if you've watched The Good Place), sometimes a good swear word is just what is needed. 

I think that including expletives for their own sake is often a sign of poor, sloppy, or immature writing, but sometimes they are necessary to make a point or make dialogue ring true. I respect a reader's right to not read language that offends them, but I'm not prepared to discount a book solely on the basis of bad language. I'm much more offended by bad writing, poor plotting, and weak characterizations. What do you think?