Answer: If you edit your swaps page and remove the email address you will stop getting requests.
You can do this temporarily, if you go on holiday etc.
If you want to do it permanently, you can delete your swaps page.
NB: I do not do this for you, you will have to do it yourself.
If you want to completely remove your registration and all swap pages, you can send me feedback and I will do it. This will be automated soon.