Depends who you ask, I suppose - I come from sysadmin world so none of these are obscure for me. So I'd say they are mainly less popular with the 'average Joe'

Depends who you ask, I suppose - I come from sysadmin world so none of these are obscure for me. So I'd say they are mainly less popular with the 'average Joe' user base. Judging by the screenshots, the author seems to be coming from Mac world, where GUI editors appear more popular than vim.