I am 100% confident that everyone in this thread would not want to benefit from an increase in property value.
'Hello, is that Mr Noseall? It's the estate agent here. We now have the valuation on your property. You know, the property your parents bought in 1976 for £10k. It's been valued at £320k so we suggest putting it on the market for £310k with a view to achieving £300k. Is that ok with you?'
'Absolutely not!!! It's abhorrent and immoral how much the property has gone up in value. Please put it on the market for £150k and not a penny more my good lady!'
Yes, that's what you'd all do, isn't it
Isn't that illegal?