Time eharmony don't use usernames.
Queen I wouldn't bother. My experience is, apart from a short time last year, when I did have some success and a few dates, most of them didn't even bother answering any questions I sent out. I am currently a member there but won't be renewing when my membership runs out. I've sent questions out but they haven't bothered answering them and neither have they closed the match to say they're not interested, very frustrating. I know they've been on site because it tells you when they were last on, or roughly when they were last on. It's entirely your choice, you may want to give it a go and might have more luck than I did. It is easy to close membership, unlike some other sites, if you don't have any success. I have to admit the few dates I did go on were with nice men, just no spark.