not2easy - 9:12 pm on May 25, 2013 (gmt 0)
You didn't mention what platform your blog is using so it is hard to give specific answers, but two things stand out: Sitemaps should not be manually built, there are too many ways to automate that and have it always up to date.
You need to look at whatever settings are available to your platform that let you control what gets posted and prevent spam and pron from being part of your content.
Good luck with scrapers, maybe start taking a look at your access logs instead of stats only. Stats don't tell you what they came for or what kind of a visit it was. Learn to see the valuable information about what is really happening on your site - it can tell you what you need to work on first.