Pros and cons to add Captcha feature in donation form page

@Catherine Han - To avoid your forms being used by skimmers and the subsequent clean-up of that data, I highly recommend using reCAPTCHA. It is simple to set up and then add the element to any donation forms you have on the site. You simply need to set the version in site settings and then add the element where you would like to see any “challenge” message in the appropriate place on the form. V3 will be “silent” for most donors but will stop most bots. See this KB: