A temporary solution to Steem Sea bug 1#REGISTER:USERNAMES where you can't include a hyphen - in usernames is to include DASH where you have a hyphen. https://steemit.com/steemsea/@steemsea/steem-sea-bugs
Example:
STEEMIT USERNAME: my-username
BECOMES: myDASHusername
Please leave a comment with username selected so we can match your username to you. We understand this could make a colission with a username that actually has myDASHusername, but as Steem Sea is still new, it is a workable for now.
When code gets updated to resolve this bug, then we can migrate over your account, for now, please reply in comments with username used. Note, keep within only using capitals DASH where you have dash so doesn't cause problem with other members if my-username suddenly decides on using madmax!
======================== START STEEM SEA USERNAME EXCEPTION LIST START =====================================
= ervinDASHlemark
= (waiting for support)
========================= END STEEM SEA USERNAME EXCEPTION LIST END ========================================