We've noticed that we spend a lot of effort tweaking these things and they seem to make little difference in the percentage of users that sign up and the percentage of users that make it to a place where they can positively contribute to the Gaia community.
Changing Directions
We're in the process of refocusing our efforts. My hope is that we will be able to spend more time fixing core issues with the site (that, by no coincidence, also trip up new users). This will include lots of bug fixes, some minor redesigns, lots of backend code changes, and our "growth" efforts will be more focused on offsite efforts to get more users to navigate to Gaia. Hopefully all Gaians can get behind these efforts as they should create a more positive experience for everyone.
URLs are a changin'
My first few projects involve changing URLs for features like Profiles, Journals, and maybe Guilds so they will look similar to the URLs of Forums. This will be transparent to users (no old URLs will break and they will all automatically redirect you to the newest URL).
Error Pages going purple
Some error screens (like the "404, file not found error, and "critical error", when the databases are overwhelmed or when really bad code is run) will be moved to a new format similar to the purple "login" page. I am removing the "town" theme from these pages as it is confusing to see the town but not your avatar (users report that it makes them think they've been logged out). These pages fundamentally don't know if you're logged in or not so they treat all users as if they are logged out (hence you don't see your avatar at the top).
Possible new feature: "topic pages"
We are also brainstorming ideas for users to benefit more from helping the Gaia community grow. Early ideas include allowing you to earn gold/items from building pages about topics you really enjoy. The more your page attracts users from the internet, the more you will be rewarded. We are not talking about adding those lame "share" widgets on web pages... we are talking about giving you the tools to customize a page about your favorite Manga, Anime, Music, Clothing... whatever topic you choose. Link to Gaia Forums, Guilds, or Journals pages about the topic; create a picture gallery; make polls; link to Avatar Items; etc. The more users that interact with your "topic page"... the more you are rewarded for creating and curating it.
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