I think what Brian and the testers are missing is that 15k is neither big enough to be impressive nor small enough to be inviting. It’s not a number that works effectively as social proof, and while I can’t test it out myself, I believe, based on evidence for social proof around the web, that DIYthemes would have had much better success with a combined number in the 50k+ range as mentioned above.
Promotional emails are one of the most economical ways for any business to connect with customers. Research shows a message is five times more likely to be seen through email than on social media like Facebook or Twitter. That’s why musicians use email marketing software to share their performance schedule with their fans, non-profits use it to get donations and photographers use it to promote their portrait services. It just works. https://1xqdqy285sk7212bfiejcprr-wpengine.netdna-ssl.com/wp-content/uploads/2017/11/email-marketing-process.png
Testimonials – If you work with contractors or freelancers, you can reach out to them to offer your testimonials in exchange for a link. Moreover, if you are using consultants’ or specialists’ services, you can also do the same as you do with contractors. Lastly, if there are customers who are happy with your product or service offering and they do not mind you linking to their site, this could be a good opportunity for your business.