Thank you. Here's one official response I found, if others are interested.

> Again, we've done the research. The profits aren't there -- very few Linux users are willing to pay for commercial software.

> And the cost of entry is still high because of the fragmented Linux landscape.

> The Linux world has to change before commercial software will have reason to invest in Linux ports.

> And we haven't seen much real change in the Linux market in several years.

https://web.archive.org/web/20160321232350/https://forums.ad...

Edit notice: I completely overwrote the initial version of this comment, which said I couldn't find these posts, because I realized I was using the wrong search time terms and found what parent mentioned.