Yes. Definate scam.

I've counted 4 scam threads (5 including yours) regarding this Polybius/Hashflare/Hashcoins/Ambisafe/Emercoin ICO:

The amount of noob/shill accounts trying to defend them is rediculous, every time someone opens a scam thread or asks questions on their own thread they are immediately swamped by them.

https://bitcointalk.org/index.php?topic=1848751.1700

https://bitcointalk.org/index.php?topic=1970796.0

https://bitcointalk.org/index.php?topic=1952266.0

https://bitcointalk.org/index.php?topic=1971023.0

Despite this, not a single post from any of the accused regarding the accusations. Not one. Anywhere.

Only noob/shill accounts screaming in their defense.

If it wasn't such a large scale scam involving so many dubious groups it would be funny - but the amount of people getting scammed is scary.