Putting the divider down is also polite. Why are we expected to always be the most polite or suffer cruelty if we don't comply? It's a two-way street.
And my voice is fine. It's the presssure and anxiety of the situation. The nervousness makes it harder to speak loudly.
The point here is that removing the divider after having placed it simply for the person not thanking them is petty at best and cruel at worst, and it simply shouldn't happen.
People should be better, and should have some fucking grace and consider that maybe said person has a hard time speaking, or yet again worse, is mute.
Kepler, IMHO, is the exception, because they are specifically a coalition of indie devs pooling resources to give other indie devs the best shot of success.
And to the comment above yours: I think any devs who don't have a board of investors or any obligation to anyone but their fans counts as "indie" in my still-honest opinion.