The twitter handle in question seems to be the handle of burstex.org
Which was supposedly a exchange using burst coin as the base pair.
The exchange advertised in OP is burstex.io and there are no mention of burstcoin.
But the bonus policy of the ICO is quite awkward. As the initial investors gets 3 times the coin what a normal investor would get.
And the linked in profile of the cartoon team members are still not made so is whitepaper.