This is even worse than the complaints about linking Facebook and Twitter with LJ. This change they've implemented has broken the basic usability of comments - there's no more subject line in comments, no preview button, no parent or thread buttons, and while it's now focused on the default site scheme and comment pages, it seems they want to implement it to the entire site. There are screencaps of the planned changes, and the company working on them has posted mock-ups to show what LJ of the future will look like. Let me see if I can find a link.

Here it is:

http://www.artlebedev.ru/everything/livejournal/prototype/

Have a look and tell me what you think.