While I've already kind of fallen out of love with Slack, I do appreciate that they are independent. I do understand why smaller companies do this, but generally it results in a crappier product. Skype is a perfect example of a good product left to rot on the corporate vine.
The software world would be so much richer if there were more difficult for bigger companies to suck them up and turn them into corporate goop. I'm not necessarily suggesting regulation here. Just wishful thinking.