I don't think people have a great consensus on what "TDD" really means, so there's a lot of "Do you do TDD? You should do TDD!", people taking mixed approaches that they sort of make up or copy from a quick blog post, then deciding that TDD sucks or rules.
For example, this article seems to think TDD is mostly about unit tests (and I've definitely seen the same opinion elsewhere). But somewhere else, specifically GOOS[0], the TDD cycle always starts with an end to end test, with an inner unit test/development cycle to get the test passing. I think this is really important, because if you don't have end to end tests, it's a lot harder to refactor your code in significant ways, and can leave you with extra work maintaining all of your unit tests.
Another thing is "fast tests" as resulting in "a dense jungle" of objects. At least in GOOS, the assertion is that a larger network of small objects is better than a smaller network of large objects. I'm not going to argue the benefits of one way or another, but what I mean to point out is that (at least some) people use TDD because they think it will help them write a more maintainable code base, and aren't just writing code to make their tests fast for the sake of fast tests.
For example, this article seems to think TDD is mostly about unit tests (and I've definitely seen the same opinion elsewhere). But somewhere else, specifically GOOS[0], the TDD cycle always starts with an end to end test, with an inner unit test/development cycle to get the test passing. I think this is really important, because if you don't have end to end tests, it's a lot harder to refactor your code in significant ways, and can leave you with extra work maintaining all of your unit tests.
Another thing is "fast tests" as resulting in "a dense jungle" of objects. At least in GOOS, the assertion is that a larger network of small objects is better than a smaller network of large objects. I'm not going to argue the benefits of one way or another, but what I mean to point out is that (at least some) people use TDD because they think it will help them write a more maintainable code base, and aren't just writing code to make their tests fast for the sake of fast tests.
[0]http://www.growing-object-oriented-software.com/