I completely agree! We have stopped taking on the sort of project where the client has set up the website themselves and "just" needs a few theme or plugin tweaks, because (a) their expectations are usually unrealistic and they expect it to be a small task, (b) themes and plugins are often very brittle and not designed to be customised, and (c) it's very difficult to keep roles and responsibilities clear in this sort of project and the client somehow thinks that because we tweaked their theme, we're responsible for anything that goes wrong with the whole website.

However, this is only one of many types of enquiries we receive about WordPress. Barn2 Media only work with WordPress and we have more than enough work without needing to take on this sort of project. We have plenty of enquiries from well-informed clients with realistic expectations who want complete websites, custom systems built on WordPress etc.

It's all about learning how to recognise the warning bells - If someone contacts us saying: "Hi, I have set up a WordPress site using a real estate theme from ThemeForest - the site is 99% complete and I just need you make some tweaks to the property listings and advanced search....." then this is not a good sign!