I know one girl I was "bantering with" in Costa Rica most definitely blocked me and I know another girl who was my "go to" girl that I saw multiple times a week who told me when she took her profile down as she was moving to Guam for a job opportunity. Both of their profiles now have the exact same message.

Maybe if we all petition them to go back to the old way where you can tell if you have been blocked or not, maybe they will listen? It's worth a shot, I plan on doing so today.

I actually delete any and all messages from all those who end up being dead enders! On very, very few instances I keep the track record of having messaged someone for about 2 weeks or so when I send them a very charming email to let them know that the reason as to why I am humbling myself to reach out to them is because I find them to be a meaningful pursuit and I do emphasize that I know women get bombarded with messages on SA so much so that sometimes, some of them don't even bother reading messages any more! Of course there are also a myriad of other reasons as to why a woman does not get back to a potential benefactor but I would not go into those and certainly do not compose an email to a POT SB on SA laced with negativity and self-pity!

Currently, I only have exactly 3 active email records which are over one week old: the Unicorn, her potential future substitute and the go to P4P if I end up in a dry spell! Then there are those which are about a week or less old which I purge after about 7+ days of a none response and no desire on my part to pursue. One interesting note about sharing private photos:

I have noticed that sometimes some women unsure their private photos a little while after they share them with me and I reciprocate by just flat out blocking them!There are a lot of time wasters who merely wish to be on that site for the purpose of self validation and congratulatory adulations. Those types end up in the Princess's cyber blackhole too! The formula is very simple AFAIK, i.e, I have something which they seek and vice versa. I write well, I hit most points in my opener (not for everyone) and I do refer to believing in the allowance system without throwing numbers in an opener (prefer to discuss that with the person in front of me as that's how I believe that the  negotiating would favor me).  

In closing, I do not play any of these analysis matrices and the statistics ratios of openers as compared to definite closings! The only important factor to me is as to how many of those whom I meet I end up closing if they are worthwhile for me to close.

I created another account (free for basic) and logged on under the new account. I was able to find a SB's active profile that was listed as either deactivated or blocked when I logged on under my premium account. This indicates she actually blocked me. Not that it really matters; You move on either way.

It turns out that if you click on your message conversation, it will say deactivated if the SB actually deactivated and so "account is no longer active" means that she blocked you.
I saw "deactivated" on one of the girls whom I met while she was deactivated and she told me that sometimes the messages are overwhelming so she shuts it off and then she activates it back when she has the time. I actually liked her but she is meeting more people in her POT so will know next week if I make the cut, lol.
But yes, you gotta move on if someone blocks or disappears on you.