There hasn't been any movement on this side for a long time.
I know that bug trackers are not the place to whine about software, but I find the fact that one can't load more message and is stuck with the latest fifty-ish messages really problematic.
This means one can't subscribe to too many people on social networks, or that one can't use too many accounts at once, otherwise messages just drop off the timeline before one has a chance of reading them, reducing the whole point of Gwibber in the first place.
Sorry I can't help more than by reporting it, if I could help with code believe me I would, as I'd love to see this fixed. :)
Thanks for all your hard work on Gwibber!