[richm31415]

It can be, yes. For someone who is a strong believer in and advocate of FOSS, who makes her/his livelihood developing FOSS for a FOSS software company, to be forced to use proprietary solutions where there are reasonable FOSS alternatives can be very disheartening, demoralizing, and even humiliating.

[Melatonic]

I am not sure still why it is humiliating specifically - disheartening sure, demoralizing makes sense. But why would it be humiliating if you are not the person pushing that the paid / non FLOSS app be used in the first place?

Isn't this also a good chance to evangelize an alternative to whomever you are speaking with?

[ask_b123]

I also thought of that as being a chance to 'evangelize' FLOSS alternatives.

The first thing I actually thought of was this set of verses talking about evangelizing in a somewhat similar context: https://www.biblegateway.com/passage/?search=1+Corinthians+9...