I just check my inbound links on BING, and for some reason it dropped all of a sudden from 3900+ to 12...
This is also around the time that I have done some DFB and other SEO workings..
Should I be worried?
Bing?
Worried?
You should be watching your traffic and conversions, not retarded bing backend shit.
imo,
Bompa
You should check by google nlytic
Don't need to be worried
Is your traffic going down? What about your serps? If these aren't going down, then it shouldn't matter much. Care about these more thank how much 'backlinks' you have.