We currently don't have an XML sitemap for our site. I generated one using Screaming Frog and it looks ok, but it also contains my tracking url parameters (ref=), which I don't want Google to use, as specified in GWT. Cleaning it will require time and effort which I currently don't have. I also think that having one could help us on Bing. So my question is: Is it better to submit a "so-so" sitemap than having none at all, or the risks are just too high? Could you explain what could go wrong? Thanks !

Hi, I asked our IT team to be able to write custom page titles in our CMS and they came up with a solution that writes the title dynamically with javascript. When I look on the page, I see the title in the browser, but when I look in the source code, I see the original page title. I am thinking that Google won't see the new javascript title, so it will not be indexed and have no impact on SEO. Am I right ?