Ethereum Classic chose not to implement changes that fixed a fundamental error for the Ehereuem development Decentralized Autonomous Organization. The whole issue caused serious concern for the health and future of the Ethereum project.
Ethereum Classic tokens are currently worth around 5% of what Ethereum are worth, making them a significantly cheaper vehicle for ICO investors to experiment in. The tweet which begat this article, however, is more a jab at the Ethereum team for having made major changes to the protocol in order to benefit one party, the DAO, who through a bug had been bereft of their funds.
ICOs have always been possible on Ethereum Classic, so it’s not announcing that it can facilitate them. Just like Ethereum, ETC users are able to issue their own tokens and generate their own smart contracts.
A list of upcoming ICOs [https://docs.google.com/spreadsheets/d/1Nvo56-rxrzKRGsVN-UysfOq9m28y0ZCVw5tLiamPomQ/edit#gid=0] was published during the Twitter conversation. It seems that since ETC lost much of the thunder that Ethereum had and continues to have, it will take ETC some time to gain adoption, but by comparison, there is a lot money in the ETC economy that could be tapped to fund businesses and ideas, so we may see a tertiary resurgence of ICOs following the eventual pop of the ICO bubble.