[vorpalhex]

If you want to publish open source and not have cloud companies use it for their own profit without contributing back, there's a license for that called the GPL.

If you want to write software and get paid for it, then ask for money for your software instead of handing it out as open source then changing your mind once it's popular. In common parlance that's called a bait and switch.

[kryptiskt]

Cloud companies can use GPL code without contributing back as they're not distributing it.

[detaro]

GPL does nothing of the sort. If AGPL is a worthy tradeoff overall is debated a lot.