If you identify a conflict with a particular plugin or theme, you could write to the plugin or theme developer and suggest they might have a possible conflict with CF7.
CF7 is one of the most popular plugins in the WordPress Repository, so it makes sense for developers to deal with any potential conflicts.
Also if a plugin or theme conflicts with CF7, it probably also conflicts with many other plugins. It’s generally a sign of a poorly coded theme or plugin and one that people should avoid using.