Game/software developer here - although the target is mostly console the build process is always on a PC host, plus I am interested in PC development for home.
Will happily use whatever works, it's nothing to do with the brand - but I am really grateful to AMD that finally there is competition.
Code compilation scales proportionally with cores, so the more the better.
Wanted a Ryzen build for home, but inital problems and stock shortages made me to wait long enough to hear about Threadripper and wait a bit more, just in case the rumours were true
Also waited for X299 results, which are not very convincing, unless one is prepared to delid the cpu etc. - not for me.
So unless TR turns out to be bad in the reviews, it's X399 this time for me, because so far it looks to be signicantly better value for money than Intel's X299 offerings. Of course YMMV.
Don't think it's likely though, so already sent an email to OC about ordering a TR config
A year ago I was thinking of upgrading to a 6-8 core home system, today I am able to purchase a 16 core system, running at higher clocks, good IPC for the same price - except for the outrageous RAM price increases and the video card shortages, but it has nothing to do with the CPUs.