EDIT: also reorganised some of the front page categories myself to get them to line up in sync. Fixed also.
EDIT: OK found the remove category-icon margins fix. Still think the above is a prob worth mentioning. will try up a pic
thanks @julian @psychobunny
Guys, this problem also on this board:
NicolasSiver created this issue in NodeBB/nodebb-plugin-composer-default
Latest lines in composer are not clickable
When I created my first reply comment and submitted, it showed up twice on the page through the AJAX call. It was fine after refreshing the page, so it didn't get submitted twice. It seems to be a bug in the return function. I opened the page from a submitted time link.