I disagree with the idea of removing IPS patches completely. For starters, it's a very small and simple to use file that is still the most commonly known and used. For ROM hackers, it's not a big deal what type of file they use for patching, but most gamers have no idea how to use anything besides an IPS patch. Not only are IPS patching utilities easier to use than those of other types, but they also allow for the soft patching method with Zsnes and Snes9x.
RHDN could encourage people to not use them anymore, but not ban them completely. Doing so will stop many potential ROM hacks and translations from being submitted to this site anymore in the future. Besides, do you really want to see a ton of people asking "how do I patch this" or "how do I use this patch"?
I believe that it's best to allow people to choose for themselves what they want to do and which patch format to use. We at Dynamic-Designs for example, have multiple patch formats available for download for most of our projects (including all the current ones, but there's plans to release multiple patch formats for some of the older translations as well). Besides, what's the point in using new patch formats for old gaming systems such as the SNES when IPS does the job rather well? I understand updating the patch types used for newer and larger systems, not the older small ones that have games under 16 MB...
By the way, not to get off topic here, but what's with all the Zsnes hate lately? Sure it's not the most accurate emulator for ROM hacking and beta testing, but it's still damn good for gaming in general. And yes, I know that there's a few games that don't work well or even at all with Zsnes, but that's where Snes9x comes in handy. When it comes to casual gaming, most people on gaming and emulation sites still prefer Zsnes, followed by Snes9x in that order. For example, I still use Zsnes for playing most games and Snes9x for beta testing translations and playing games that don't work well with Zsnes. It may be a bit out of date, but it's still a great emulator nonetheless in my opinion. Not to mention, one of the first SNES ones ever made, as well as small in size, simple to use, functional and requiring no installation.