If looking for work in the UK a job offer is generally required before a visa can be issued, the language here seems to suggest don't bother unless you can work in the UK.
This is from the senploy website they are an employment agency or help to find work from other agencies, I am not too sure.,
What happens if they block an IP address that is say from a library or another place where there is public internet access, they may forget to tick that box, so their IP would be blocked but so would it be blocked for anyone.
