Nerfing old content is good, everyone should be able to see previous content. It doesn't hurt me either. All of those old contents they're "nerfing" all has outdated gear now anyway, who cares.

What, new people may catch up? Well, let me tell you a story. I had one of the first Heavy Allagan chests on my server way back when people just started doing coil and no one had any coil gear, wasn't long before everyone caught up. I remember when noone had Allagan weapons and I had two, but people caught up. People will always catch up. Why make it that much harder and more frustrating for new players?

Point is, accomplishments don't go away, they just become fond memories.