Nah, I use open source every day, I've contributed to it. I just don't like that as soon as something becomes popular then it's a target. It's always bothered

Nah, I use open source every day, I've contributed to it. I just don't like that as soon as something becomes popular then it's a target. It's always bothered me that open source seems to copy more than innovate. I'm sure there are open source projects that invented something new but it's hard to think of them (for me at least). But I can think of zillions of copies of closed source things (linux, gcc, etc). In the case of slack, it seems sort of mean spirited to try and clone it. They give it away for free for most people and charge for some sort of extra functionality and it's cheap, $7 or $8/month/person. I can understand something like Postgres, Oracle is expensive and cumbersome. But slack? Really? For the record I have no connection to the slack people, don't know them other than what I've read in the press.