This really show how people don't know much about the implication of being a landlord. No, I am not being taxed on profits. i get 1200 pounds in rent and have to pay almost 6000 pounds in tax. Yes, it is because my income is high, but it doesn't change the fact that once I've paid the interest on the mortgage, the tax, repairs, fees, insurance, checks, and put aside for refurbishment and redecoration, I have nothing left to pay towards the repayment of the mortgage.
I think you are either confused, have an absolutely shocking accountant, or you are being deliberately disingenuous with the figures here.
How exactly are you not being taxed on profits? How can you get 1200 in rent and pay 6000 in tax? That makes no sense and if it was the case you would be bankrupt quickly.
Unless you are using monthly income and comparing it with yearly tax bill which I'm not sure why you would do that
? But if you are:
So £14,400 in yearly rent.
£6,000 in yearly tax?
40% tax rate? Why aren't you deducting your insurance? Why aren't you deducting repair costs?
Why are you not understanding that the "asset" is yours, the debt is yours and expecting to make enough profit so that someone else can have the privilege of paying for it?
You say this proves that some people (i.e, me) don't know much about the implications of being a landlord but I feel like your post is only showing you do not understand the implications of being a landlord.
You are either in this situation of making £0 because you bought at a time when it was a profitable business venture (in which case no sympathy, sell it and invest in an actual business venture), or you've had a second home for some reason (moved in with partner, inherited etc) and you are now breaking even after paying the things you are responsible for and the interest on the loan. In which case, the system works perfectly. That's exactly how it should be.
I am not complaining at all, I am not in a bad position
Nope, just having a right old moan that you can no longer use a second home as an investment opportunity.
But you're not seeing that even with the 40% tax rate, even with only breaking even, you are still coming out on top.
Someone else (your tenant) is covering the interest on the mortgage, the maintenance, the repairs, the redecoration and refurbishment. So you have an asset that is appreciating in value, that someone else is paying to keep it appreciating in value, all for the cost you paid 5/ 10/ 20 years ago.
If someone today was offered an interest free 25 year mortgage, do you think they would complain? And yet that is essentially what you are doing and what's worse is you are making it out like other people just do not understand 
If I offered you an interest free 25 year mortgage and offered to pay upkeep and refurbishment costs, would you be on Mumsnet complaining about the fact you're no longer being paid to accept that offer? That you are no longer making a profit out of that situation?
No, you would probably realise how ridiculous you sound.