In particular, he highlighted what he claims is a decline in coverage of non-league football clubs Margate and Ramsgate, as well as Kent County Cricket Club.
Instead, Jon says content is focused on league football club Charlton Athletic, as well as non-league Dover Athletic, who are covered by a freelancer.
He wrote: “I feel the need to say a few things. But before I do, I need to point out that I have nothing bad to say about my former colleagues. I still count several of them as really good friends, and what has gone on is a million miles from their fault.
“But this week ‘Kent Live’ appeared and took over all the old paper websites. Although very late in the day, I think it makes sense. What doesn’t make sense, though, is the sport coverage. Or rather the complete lack of it. Charlton. Dover. That’s it.
“I had a brilliant time covering Margate FC and Ramsgate FC, but now they have no coverage. Online at least. I was expecting this and that is why I left. There are newsworthy things happening, but because thousands don’t flock online, they are left.
Added Jon: “I’m so sad that local journalism is becoming an endangered species in this quest for web traffic. Yes, sport in Kent can be hard, but jeez, to just ditch it? It’s absolute bloody madness. The beginning of the end.
“No coverage of Kent cricket either, due to the mantra of web being all important. And I just hate to see it all. Fair play to the guys sticking it out, they’re just doing what they are told to pay the bills. But I’m glad I’m not there anymore.”
Jon, who was in charge of sport for Canterbury Times, Dover Express, Folkestone Herald and Isle of Thanet Gazette, left the company in June and now works as a content officer at the Police Federation.
He told HTFP: “I built up a great rapport with the fans and clubs at Margate and Ramsgate, and a lot of people are really disappointed with the lack of coverage they are now getting.
Jon added: “I was brought up in Kent and have always been a staunch believer in the value of the local papers. It’s far from a sporting hotbed, of course, but to keep titles running in the area and abandon the sport because it doesn’t attract thousands online is staggering – especially as the Isle of Thanet Gazette is Margate’s main shirt sponsor this season.”
Trinity Mirror has declined to comment.