I want to apologize that we haven't gotten back to you sooner, but hopefully I can clear somethings up in this.
I am the only one who replies to support emails. We rely heavily on our forum or Discord for non-essential or less important support because the community can often help while we're away.
I checked and they ended up going to our spam filter for one reason or another; which is why we never saw them. We rarely look in our spam filter for false positives because of the mass amounts of spam we receive.
In terms of Lucas' Simpsons: Hit & Run Tweak: We do not officially support, release or maintain Lucas' Tweak for various reasons. However, someone has reuploaded it if you insist on having it: donutstuff.neocities.org/lucastweak.html
I'd also like to give clarification to your mod request: donutteam.com/forum/topic/4326-krystal-skin-mod - I noticed you replied about no one replying, I'd like to say that the majority of the community aren't interested in fulfilling mod requests. In fact, we have more people playing mods than making them. You can always join the Discord and learn how to make mods yourself. As long as you're willing to learn and are appreciative, people usually will help out in that front.
In terms of us still being active. The simple answer is yes we are still active.
But the long answer is that's a difficult question to answer and this probably isn't the correct avenue to officially discuss that, but I'll give some information.
Since the end of 2019, we've been working at less than half capacity. A lot of staff members have been burned out, working on personal or other projects, or are not simply not as interested as we were when we started this. Before we founded Donut Team, Loren and I were very interested in developing our own video games. However just by luck, we stumbled into creating a modding scene and made amazing friends like @Kenny Giles , @Lucas Cardellini and too many others to name here. When we founded Donut Team, I was 16 and my curiosity in the video game scene drove a lot of interest in The Simpsons: Hit & Run modding. I am now 24 and am more interested in cementing my career, building a life with my partner and fulfilling what I wanted to do before this project. Since about 2016-2017, I've strictly worked on the community website, public relations and other community centric efforts.
This doesn't mean we don't care about the community or that our projects are done and over with now. We have a lot left we want to finish and a lot left to work on before the curtain drops. I just think we're not all hands on deck currently and I hope in the near future we can find solutions to these things that create this disconnect.