EddiePJ had a long running disagreement with a prominent poster who often posts on the same subjects as you Neal, so that might have a bearing.
The loss of KirstinS is a complete mystery since he was a regular and enthusiastic poster. However after frequent posts there was a gap of three months between his last two posts, so perhaps interest was waning.
Cwah was getting rid of his e-bike and I suspect is no longer riding one.
Over the 14 years and six months of this forum we've lost a huge number of regular posters,. mostly seeming to lose interest after a while though often still e-biking. From time to time one of them pops back after many years to say hello and I welcome them back, but it's usually only a visit without posting.
I just plucked a random old thread from when the pedelecs site was only 20 months old. Posters in it that were prominent back then are now almost completely missing though sometimes visit without posting. Here's a sample from that thread:
Tiberius (Nick), a scientist with over 900 posts who built his own bike from a rewelded frame up for the last Presteigne e-bike race and won that and the hill climb. Last posting in March 2010, he visited in October 2010 but was using Endless Sphere more then.
fishingpaul with nearly a 900 posts. Posted regularly to 2018 then disappeared for two years until an isolated 2020 query, though visited to look in January 17th 2021
JamesC, a helper with methodically arrived at solutions for obscure problems. Last posted 2015 but visited to look in March 16th 2021.
coops (Stuart), a prolific poster from the start of the forum for two years to the last post September 2008, but visited to look in on July 17th 2015.
Django (Struan) who created our Members map originally, joined in the earliest days of pedelecs and last posted February 2011. He visited to look in on March 27th 2021.
JohnInStockie, another regular with over a 1000 posts from these early days, he last posted on August 12th 2011 but visited to look in on July 14th 2020.
Note how they often pop back in without posting to see how we are getting on
Here's
the link to that 2008 post
.