[bombcar]

Many people use the same methods for commercial software and open source — and think threatening to move their non-existent purchases elsewhere will light a fire under someone.

(It often doesn’t work for either.)

[HomeDeLaPot]

Your 50-person company is not going to move the needle on $BigCo's bottom line if you cancel because $BigSoftware doesn't have such-and-such a feature. And also, where you gonna go? Take a few months and migrate everything to $OtherBigCo, then do it again when you find out their product also isn't perfect and they also won't dedicate a dev team exclusively to you?

[bombcar]

Exactly. It’s like yelling at a cashier - I guess people do it because once in awhile it works.