Moderating a Facebook gardening group in western New York is not without challenges. There are complaints of wooly bugs, inclement weather and the novice members who insist on using dish detergent on their plants.

And then there's the word "hoe."

Facebook's algorithms sometimes flag this particular word as "violating community standards," apparently referring to a different word, one without an "e" at the end that is nonetheless often misspelled as the garden tool.

Normally, Facebook's automated systems will flag posts with offending material and delete them. But if a group's members — or wors...