I never used starter packs or noobie-oriented mods or graphics packs. ASCII and the vanilla game and some mods myself or others have made is what I learned with and am comfortable with. Its just not df any other way.
I don't quite like when people say this. Maybe it's partly caused by naming and positioning of these "newbie" and "hack" tools. I noticed a lot of people who do not use DFHack still use Dwarf Therapist, for example.
The main thing to keep in mind here is that if you do not want, these tools will not change anything in the gameplay, make it less hardcore or make it "not df" any other way. Using DFHack does not mean you're cheating or incapable of playing vanilla DF.
I personally do not use any gameplay-changing plugins myself, and I don't like that "newbie packs" come with a lot of plugins and custom shortcuts enabled by default. Still, at least the launcher app can be useful for changing settings in init/d_init files, if needed.
As for DFHack, if you don't want to change anything in gameplay (mostly it's related to automation of certain tasks), there are useful plugins that improve UI, adding things that are missing just because they are low-priority for Toady. Like search in all lists, comfortable labour management, improved game load screen, quicksave to avoid losing all progress in case of a crash, and some others. Previously DFHack also included fixes for some acknowledged bugs, but not anymore, as Toady releases bugfixes more often.