The scam accusation is old and the user didn't give any updates about his issue since May. It's hard to know If this is legit or not. Either way, a list of alternatives (depends on the country): Kraken, Bitstamp, Bitfinex, BitPanda.
That's true. It's hard to know, but based on the information he provided at this time, every one dealing with coinbase will be afraid now to continue to. There were also few similar accusations with it.
Is there a list somewhere in this forum where it has been mentioned which alternative would be better for any country/region or can you tell more about this please?
Coinbase is overpriced anyways and takes way too long to get verified. Instead, use an alternative like LocalBitcoins where you can remain anonymous, or an exchange like Bittrex or Bitfinex.
How can you remain anonymous on LocalBitcoins please?