Yawn, always the same bogus accusations.

And the same bogus reply of yours to our points...

there's no rational reason to prefer VTI to TiEmu

You're lying: multiple persons have given you one rational reason for using VTI instead of TIEmu: old computers.
It's not like it was hard to keep, in the Delphi IDE, VTI support alongside TIEmu...

maintaining the project's quality

Well, facts show that you have rather low standards when it comes to the quality of TIGCC.
Merely compiling the examples showed no less than four sets of problems, one of which was due to an untested modification made by you 4 years ago (by "set" of problems, I mean that e.g. the couple dozen name collisions between examples are counted as a single set, and so are the compilation warnings).
The buggy bsearch and the stupid shellsort implementation, which didn't have an example, didn't get caught either until recently.

and/or long-term maintainability.

Discouraging former contributors and potential contributors alike is not an appropriate way to achieve this goal
The project's quality doesn't worsen immediately (in the long-term, it will due to bit-rotting) - but it won't improve either. Hardly anything gets done in TIGCC - not even things that you're always nagging other people for, such as optimizing for size (here, the library functions).