thanks is this mean if i have account before 2013 can have avatar before full member ?
What about Guest posts ?
No, only if you enabled an avatar on a normal member / junior member account before 2013, if you have a > Full member account right now without an avatar, i don't think you will be able to add an avatar..
You can't change or upload it anymore now.
About guest posts, I think they disabled these kinds of accounts somewhere down the road.