I assert that John Allen Frey was the original developer of Gapcoin
Your assertion may has been proven wrong since j0nn9 (Jonny Frey) has been active on bitcointalk on March 23, 2018! Also he (or his script) has updated
http://gapcoin.org/primegaps-length.php on September 10, 2019!
At this 5th year milestone, I would like to thank Jonny and all the supporters of the GapCoin project. New record prime gaps await us ahead!