i recently noticed "--" in domain,i have in online business for 9 years,but i always think "--"cannot be used in domain until i visit this site (before when i saw it i thought it spell wrong). how do you think about "--" in a domian,? good or bad?
If you are expecting click type traffic then it does not matter what the domain name is. If however you expect those type-in traffic then people may have trouble with the double dashes.
it must have been a IDN (internationalized domain names) they use punny codes you can register then too search google
It makes your domain harder to remember. Even with one "-" it already gives your non "-" counterpart a chance to catch typos
double hyphen? I would never get a domain with single hyphen even. Its pain to tell someone, hear, then remember and then type .. stay away from hyphens.