
In the case of stations in England the default square is IO91vl which puts them in London. A lot of English hams have this square on QRZ.com, which is frustrating when working them on VHF/UHF as the beam heading is then usually wrong.
I suspect the default locator square for many stations is also the centre of their capital.
A facility to “blank”, or ignore, a particular square is probably easy to add to the settings menu in Log4OM and could then avoid spurious beam headings and distances.
73 Dave