Curiouser and curiouser - was unable to log in as ANYTHING at all, using any username or password I've ever had. So, as 'Luke', I asked for a password reminder to be sent to my hotmail account, which is the one associated with that username. Did it twice, but nothing came. Then, tried to log in again as 'Luke, honestly', but was told that username doesn't exist. Then, as 'Luke' once more, tried getting reminder sent to my googlemail account, which is really the one associated with 'Luke, honestly', and when I checked there had received a password reminder for the 'Luke, honestly' account despite having not asked for that one.) (and also despite the fact that GMG has just told me that 'Luke, honestly' doesn't exist!)
At least it means I'm able to post here for now anyway, until next time I am logout and can't get back in again. But I'd rather be here in my comfy, worn in account! This one feels all itchy...