techno is fluid, it changes, it keeps changing.
New styles within it come along, and remain in favour for a while, then everyone tries to make it, then it becomes more mainstream, then the stragglers catch up, then some creative people get bored and move on, while others latch onto said sound and rinse it for eternity.

there`s nothing wrong with this. the need to move on is a natural response from any creative and explorative artist.

Some techno gets given a new name, so people don`t consider it to be techno any more
It`s not really about forward thinking for me, more about change and trying not to stand still.
Although there`s nothing wrong with keeping old and good stuff with you at the same time.

there are some people who have never heard a techno record before who may hear some and think it is the most amazing futuristic, forward thinking music there is, so in a way, it`s all relative.