Hello. We've been in touch with McDonald's about this and they've asked us to post up this response from them:
'Thank you for your comments and for bringing this to our attention. We are sorry for any offence or confusion caused by this filtering error.
'At McDonald's, our customer experience is very important to us and we know that the free WiFi we offer in all 1,200 of our UK restaurants is an important part of this. McDonald's is a family-friendly restaurant and we use category filtering across our public internet service to ensure that we provide as appropriate an experience as possible, considering the broad range of customers who visit our restaurants.
'However, we are always looking to refine and improve this filtering process because, as we're sure you can imagine, it is not easy to correctly categorise every website that exists, and we do have to rely on computer systems to aid us with this. We are currently changing WiFi providers and a product of this transition will be a more intelligent filtering system that will help eliminate instances of inaccurate website categorisation such as this.
'We are halfway through this process which we hope, when completed, will improve the experience for all our customers, but, until then, please do continue contact us with any other examples of website filtering that you feel to be misguided, and we will be happy to look into them for you.'