I usually use the reverse search function to find exchanges who want to come to England and London. And I have a very large house 1 hour from London so almost nobody who has listed England or London as a preferred destination should be completely disinterested. However, I get a lot of responses that are short or suggest that England/London are not of interest to them. Is this a result of people leaving their preferred destinations unedited and not up to date?
Your lack of interest could be because of a number of factors. Indeed some members may not regularly update their list of preferred destinations. However there are other things to take into account: perhaps they do not want to travel on the dates you have suggested; 1 hour from London is for many people not the same as being in central London; although you have a lovely home it may not be the type of property they are looking for….etc.