My thoughts? First, did you expect a serious answer?

Or were you just trolling? You asked the question on the ST-Owners forum, not on a Concours forum. Of course the folks here prefer the ST...they plunked their good hard cash down on one at some point in time. In other words, they voted with their wallets.
My next thought is are you trying to buy a bike to ride? Or a forum to talk about riding?
The thought after that is if the bike was not very popular...why did Kawasaki continue making it and Honda quit theirs?
Is there not much to fix? Maybe the owners know how to read and search the forums?

But generally, I'd say no.
I'm a member of both forums, though I never owned a ST1100 or ST1300. (I did own an NT years ago though.) And I never owned a Kawasaki. Both forums take the attitude of come for the bike, stay for the friendships.
Here's what I see of both bikes and both forums. The bikes are totally different. The Honda is more relaxed in riding. The C14 is a brute. Many C14 owners have their bikes flashed and I wouldn't be surprised if the resulting horsepower is well over 160. It's a rocket ship. The fastest riders I've ever ridden with had C14s. So both bikes are good, it just depends on what you're looking for, and for me, does it give me joy just in walking up to it and admiring the lines.
The ST-Owners forum is very talkative. The COG forum much less so, but very helpful when you need it. COG is an organization, not just a forum. There are ADs (Area Directors and assistants) for different regions of the country. They have an exchange program with European riders where they send someone deserving across the pond and show them around for a month. Each section of the country has a lot of rides planned. Jesal lives in Calgary and rides his C14 several time a year into the states for rallies. For someone on the west side of the Continental Divide, the ST-Owners are sparse for any organized riding. But for the COG group...what they lack in forum excitement is more than made up for in group rides. We're doing a National Rally in Bremerton, WA next June. Just finished one in Georgia and the one last year was in New Mexico. We're planning for about 140 people or more. I put 23,000 miles on my XR in 13 months...riding with COG members.
Maybe the reason no one is on the COG forum is they are out riding?
Chris