Sorry to see you go. Hope you find a good home for your data. I am sure the two posts above answered your question.
But, for archival purposes, if anyone happens to come across this thread in the future, one of the nice things about DT is that you can set it up so that you don’t have to “start” or “quit.” I index all of my content these days for reasons (way too long and uninteresting to anyone but me). Because everything is indexed (not imported), if I didn’t double-click on the DT icon again, it would not impact my content.
At this point, the only factor that would make me stop double-clicking on that icon is if the developers did something awful to it or I switched to Windows. Both possibilities seem unlikely, but next month I am moving to a Windows-heavy environment at another university and have to at least consider the possibility.
After about 16 years of using DT (time flies!), I still haven’t found a better solution for my needs, especially since the app requires no effort at all to “opt into” or “opt out of” if you are indexing. Ironically, perhaps, it is precisely this portability and freedom to easily leave that makes it so appealing to me. You could say that DT is a significant factor keeping me in the Apple-verse, so maybe Apple should be paying DT some thank-you money.