getting blocked because of network infrastructure ?

Hey Guys,
I've been wondering lately - what type of network infrastructure might affect my social network profile and cause it to be blocked or blacklisted ?

I mean - this question is not about being blocked because of my actions as a user, but rather because of my network.
Stuff such as Browsers, Cookies, IP address, could it even be my MAC address ?!
I'd really appreciate your answers because I've been having problems with this lately and I don't believe that I break any rules as a user - so it must be my infrastructure

There haven't been any rumors of MAC bans yet, at least when opening ad section. I assume account creation is monitored even harder due to all of these FB PVA providers.

But all of these things you mentioned could potentially cause problems. I would suggest going to some internet cafe or using your phones hotspot with brand new windows installed. NOTE, there are many more things which could trigger ban - such as even browser installed add-ons. Any pattern can be the cause!