Thread:Nightlily/@comment-4260948-20170417173238/@comment-25375217-20170417191850

English Grammar Nazi, here to help! Commas are incorrect in those positions. The only time there should ever be a comma before a contraction (and, but, & or) would be the Oxford comma in a list (like the comma before the ampersand in my previous parenthetical), which itself is also considered unnecessary by many (though I think it makes more sense to use it for various reasons).