System says registered but I don't recall registering with my email

So I use my email in the "forgot password" link to have instructions sent to my allegedly registered email address and I haven't received an email from you. Granted it's been just a couple minutes so I'll keep checking but like I said I don't think I've ever registered. And I'd like to to be and to ask questions in your forum for assistance, but your system is telling me my email address is already in use. So... Hopefully you can help.

While I'm here maybe you can answer this question:

I've got a few points I recorded on your map that I don't want saved anymore. It seems my only option is to hide them. Doesn't make sense. How would you avoid over time ending up with an unmanageable collection of unwanted points mixed in with wanted points you just wanted to "hide"? So I need to know how to "delete" points. Thanks

Btw, your captcha security anti-robot thing on your website is wrong. Can't do simple math(5+2, 7+6). I've tried now 6 times I know the answer to those problems, but your system doesn't. Hopefully I can eventually get through this...

Edit: never got past stupid anti-robot ROBOT. Had to sign in with google+. Maybe you guys should either fix your own registration system or just leave users to use facebook/google+.