The only thing I know you will have to watch out for eventually is copyright.
I guess Google, who owns Blogger, is starting to crack down on blogs that are infringing on copyright. So if you build your whole foundation on spreading old records and choppable material, there could come a day where you have to pay the piper.
That is why on my blog I just post about a bunch of things. So if they deleted my posts having to do with copyright material, I would still have a bunch of other published stuff up there. I also manually back up each post by saving a Text file version of the post. So if you had to ever rebuild your blog, you would still have each post and you would just have to copy and paste you posts.
It would be tedious but at least you wouldn't lose everything.
What I am doing... for those that are also trying to build their brand and online presence, is building my blog with Blogger, but then I am going to mirror it at Wordpress and then I will incorporate it to my site. I don't know if I am going to manually build my blog on my site with code or if I am going to just add it using the Wordpress option. If my Wordpress account is deleted then I am screwed so it is best I build it but I don't really want to invest that much time into reinventing the wheel when it already exists.
I haven't updated my actually website lately because I am working on copyright cleaning it. So if the day comes that someone blows the whistle on me for copyright infringement, I can delete my remixes and just keep all my original instrumentals up. That also means that all of my existing remixes will disappear because all of them use uncleared samples.
I wont give up sampling but I will be focusing a lot more on sample free beats and royalty free samples.
