There's nowt wrong with the topic, Andyn.
After all, you are notably one of the most argumentative posters on this site, and I would have thought you as a youngster wouldn't have any regrets at your age anyway,and would have enjoyed the cut and thrust of taking the rip out of us old geezers who have posted,so really the post isn't within your astral plain.
It was started by me for old gits like me, and that is a fact of life,that such as myself always do think back on their lives and say, If only I had done it this way.
It's a fact of life, and when you get older and mature a little more, you might realise that.
Regrets are also a fact of life, nothing depressing, more amusing really, and I don't think there is a reason for blocking it.
Doing no harm to anyone, and if it's depressing to you, young man, I'd start thinking about the real things in life that are much more depressing than an inocuous series of postings............like global warming thats threatening to put my house under 6' of water, Terorists trying to blow the crap out of you morning, noon and night , a parent having to hang on to their mortguage when the breadwinner has lost their job, negative equity on houses that are falling through the floor in priceor living through the deepest recession since the 1930's..........now THOSE things are depressing. NOT a simple post on a model boat forum
I think a little perspective view on life might frighten you more that what someone might post as a simple regret in life.