I can understand your concerns regarding Diesel's recent development, especially with the latest innovations that have generated mixed emotions among the users of this forum. However, in my opinion the type of clothing that you refer to as 'Ed Hardy'-style has been around for quite a while and even though it's not easy for me to admit, it has always been a significant part of Diesel.
Then again, there is such a great diversity of clothes and looks from Diesel that it didn't matter... in fact, it still doesn't. That's what makes Diesel such a special brand to me... even though it has such a great recognition value, you can never generalise its style, there is no 'prototypical' Diesel look as such. Dressing up in Diesel can generate so many different styles that even people with totally different preferences will find something that corresponds with their individual style – the essence of Diesel will always be there.
I'm positive that Diesel will always remain interesting and appealing to most of us, we just have to be willing to engage with the future of the brand and the several innovations that are yet to come.