Most of the ads that you see on the site are generated by your search history or come from your own computer, rather than the website itself. There are a few occasional ads that you will find on the website, often right when going to the website, but the ads that we do have should not be inappropriate and are very few (if you really do think they are coming from the website, though, feel free to send a screenshot to me.) I haven't seen any on the website recently, so it may be simply something coming from your side. If you don't have an anti-virus or malware protection program on your browser or computer, I would try installing a good one and see if you continue to see the ads. You could even try going onto the site using a mobile device and see if the same thing occurs.