When replying to a post, if I reply from the Friends page, I can quote and reply.
If I view the post separately, with comments, the reply page doesn't have a Quote button. It does have More Options, though. If I select that, then the Quote button appears - but the original post disappears, so there's nothing to quote from.
Plus, the Quote button quotes twice. And sometimes, posting the comment posts it twice, so that I have to delete a copy.
Sigh. Should get round to upgrading this ancient installation one week. I just don't want to go through the stress of getting the ADSL working again. :-(