My experience on Twitter is you have to try and find the right time to post things to get the best traffic.
What's the rules on re-submission here? I figure I could post it again with a 12 hour offset from the last post's time to target the opposite timezone. If that doesn't work out, I'll just deal with it :)
If you built something you'd like to solicit feedback on you can use Show HN: https://news.ycombinator.com/showhn.html
I only speak for myself but I think most people appreciate mixing self promotion with things that you think meet the on-topic guidelines that are of interest to the community. https://news.ycombinator.com/newsguidelines.html
I checked out your blog and the archive link which is really cool. I think what I'd like to know is what's unique and different about the Tasmania LAN community that is interesting? Culture, food, games, language, is there something unique in that archive that adds to other LAN or games cultures?
I'd focus on the quality of the submission vs. the result it generates, or things like the time it's posted because the two are not always related.