It depends on what you are defining as light profanity--I think I know, but some people might stretch the definition.
The issue of using profanity is whether it is necessary. There are two outstanding books--old books, "The Grapes of Wrath" by John Steinbeck and "Mr Roberts," by Thomas Heggen. Both use very earthy language. The language was appropriate. In "The Grapes of Wrath" the language express the frustration of families that had been turned into migrant farm workers because of the dust bowl years, the depression and government policies. They lost everything and had to scrounge every day for survival.
"Mr. Robert" is about life on a Navy supply ship during WWII. The term "cursses like a sailor" made the use of profanity appropriate and at times amusing.
To be more direct in your question, is is probably not necessary to use profanity in Hubs are responding to questions. If the profanity is in a quote, then use it if the quote is vital to the comment you are making.
My father, who did not get to finish high school was known to say damn and hell every now and then, but nothing worse. He was a wise man and said that the excessive use of profanity only showed a lack of intelligence. There are a lot of other words that can usually be used to expressed outrage, anger and other emotions.
I do not think I have ever used profanity in any of my writing over the past 35 years, not completely sure. In my college days I used it quite a bit in my spoken word--fortunately I matured before i graduated.