Hi Samora,
It’s an interesting question. A few pieces to unpack. First, I don’t think this site and others simply give away answers. Such sites do exist (Danword etc) and it would be a personal choice to use them, but there would be little satisfaction in using them unless you really have no other option.
Then there are solving tools such as anagram solvers and missing letter finders (here I’m thinking of OneLook and AnagramSolver etc). Again it’s a personal choice, but sometimes an anagram solver is quick and easy and the tough bit might have been figuring out the fodder in the first place.
To my mind the greatest value that sites like this one bring is the community forum aspect. Being able to meet with like minded people, who can educate and encourage others without necessarily giving away answers. I started solving (and in a very minor way setting) five years ago and wouldn’t have progressed very far at all without the help of the experienced folk here and elsewhere.
Finally, you mention whether setters give consideration to the tools available. I would say very much, yes they do. Quinapalus and Crossword Compiler (as examples) are very powerful tools that setters have at their disposal and they know very well that solvers have more than just Scrabble tiles on the kitchen table (not that there’s anything wrong with that approach either!).
I don’t know if that fully addresses the question, but it will be interesting to hear what others say.
J.