They say eyes are the window to the soul, and so is a theme the window to your forum? Does your theme tell the story of what your forum is about, or is it even necessary?
Shortly after I started working at ProBoards I had a conversation with
VS Admin , and he explained that a lot of research went into the overall layout of our forums. The default layout we offer is optimized for the best user interaction. Looking at our current list of top forums, 9 out of the top 10 have made no layout alterations other than changing some color, and a few have added the sidebar.
So what does this say? The purpose of the forum and its content are the key.
That said, does one size fit all? I just cannot imagine visiting a Star Trek forum without expecting to see a space theme customization. I would think that other visitors would expect the same and be turned off if the forum had just a bland theme.
Themes can enhance the user experience. Offering more than one theme to choose from allows the member to have a more personal connection to the forum. If you expect a member to spend a lot of time on your forum, then having multiple themes gives the user a sense of control over the environment they’re committing their time to.
Some forums have a default generic guest theme, while reserving the additional "fancier" theme choices for members. This approach is akin to a premium or bonus one receives upon registering for membership. However does this backfire? Does the generic theme turn away guest users? Are you putting your best foot forward for potential new members?
Lastly, I would suggest you ask yourself the purpose behind any theme you offer. Is the theme just a personal preference for yourself? Are you using a theme because it looks “cool”? Does it complement the purpose of your forum? Does it elevate the members’ experience on the forum?
So please share. How have themes impacted your forum or your experience with other forums? What feedback, if any, do you get from your members? Basically, what are your thoughts on themes?