I’ve run into a couple of problems with purchased themes this past couple weeks, and wanted to post this, only because I’m just a bit miffed, and done fighting with themes.
If you include documentation with your theme, then make sure that the instructions for that particular theme are explicit.
If you’re a developer, and can code/hack/manipulate, then you pretty much won’t read the instructions anyhow, so this really isn’t directed at that consumer group.
Once you’ve created your theme, and documentation to be included with that theme.
and BEFORE you post it here or there for sale:
Pass it along to one of your friends, preferrably someone that doesn’t develop, and is more of the end user.
Have them follow the included instructions to see if there is going to be a problem.
This will allow you, the developer to provide the end user with a much more pleasant experience, which in turn may provide you with additional business.
Be Explicit:
- Include ALL the Plugins they need to go and get and to use to make the site look or act like the demo they just saw
- Include how to change colours, links, Logo’s, Text
- Include how to implement social networking icons.
(This one is a major one, as almost 60% of the sites here don’t have/include them)
- If you include PSD , Flash, make sure to lay out how to change colour’s text, in them
The best Instructions I’ve seen, are the ones that have different coloured text in the coding where I would tend to make my changes to make the site work my way.
I think you see where I’m going….make it as easy as possible for someone to implement a site quickly….the end user really doesn’t understand wrapping an img in div tags.
Coders/Developers’ minds don’t work the same as an end user 
Oh…if you support your site answer your emailed questions about the site
if you don’t? state it in your instructions
Nothing worse than asking a question about a purchased site and how to do something and having to wait around for someone for almost a week to get back to you.
Thank you.