[Standards] XEP-0154 and XEP-0084

[Andreas Monitzer]

Hi,

I'm currently working on implementing XMPP features into libpurple.  
I've successfully implemented PEP and User Mood (XEP-0107). Now I'm  
planning on XEP-0154 (User Profile) and XEP-0084 (User Avatar). Those  
protocols are still experimental, though. Is it wise to implement  
them right now? Why are they still experimental after 4 and 3 years  
of development respectively, are major changes expected?

thanks
andy