More than 50% of the plugins I use for my projects are Rex's.
It's always a pity to lose the interest of a 3rd-party dev. A host app may be powerful, but I find that 3rd-party developer initiatives is the factor that makes me stick to an application because they are naturally directed to address real-world workflow problems.
Agreed. I even suggested Scirra giving those 2 Rojo and Rex free subs for C3 because they are so awesome to have in this community. Never had a reply to the suggestion. :-/
Over many years, I made lots of free tools for a 3d prog called LightWave and got into their beta program (which also featured special discounts) through the urging of a fellow community member .
But I'd like to venture a guess that, given the fact that these developers provide tools for free, discounts don't rank as highly as good and healthy communication between them and the community, and Scirra itself, the developers of the host app.
I'd like to thank rexrainbow for his generosity both in the providing of these tools, and especially his willingness to give his time to answer questions, and provide support freely. I've done this myself for a long time in the 3d/CG world, so I can deeply relate to his passion for his work.
I wish him all the best.