I would be more interested in contributing to the project. GitHub is a site with more the developer focus while CodePlex seems to have more focus on the discussions. I find more information on StackOverflow than on CodePlex when i have some problems, so i mostly don't use CodePlex. And when i have some bugs i would rather find the OxyPlot code and fix it on GitHub than on CodePlex because it's more clear and easier for me.
An example: I got an NullReferenceException on OxyPlot/Series/XYAxisSeries.cs: Line 181. I search in CodePlex, found the file but it does not show any lines. So i have to count the lines to get line 181?!
An example: I got an NullReferenceException on OxyPlot/Series/XYAxisSeries.cs: Line 181. I search in CodePlex, found the file but it does not show any lines. So i have to count the lines to get line 181?!