I have never been to tumblr before I registered there so I am not sure why this happens. Has it always been like that for you or is it a recent development?
 

Thank you both for trying to help me.

Perhaps I should explain a bit clearer about the situation.  Please bear with me because I really don't know all the up to date terms concerning this sort of thing so I maybe using the wrong names for certain things. 

When I say that I went to Tumblr all I mean is that I went to someone's site that has the word tumblr in the address. 

Specifically I am talking about the site http://princeprosperoredmask.tumblr.com/ 

While reading a post on this site there was a link to a site http://ummzaksbest.tumblr.com/ and when I clicked on it a quick flash of the site appeared (too quickly for me to read anything) and then it disappeared and on the screen appeared the word "Goodbye." in the upper left hand corner of the screen.  It's never happened to me before (when I clicked on the same link, which I have in the past) and it hasn't ever happened to any of the other links I click on on that site (the one titled http://princeprosperoredmask.tumblr.com/ ) or on any other site for that matter. 

When I put the "ummzaksbest" in google (so I am not on the "princeprosperoredmask" site) the same thing happens.  Never happened in the past but now (I would say this first happened about a week ago) it happens every time.  

I really don't want to go to that horrible site regularly at all (the Ummzaksbest person is a hater of Sophie Hunter) but it did make me curious as to why this was happening.  Like I said, I don't know anything about tumblr (and maybe it doesn't have anything to do with tumblr) and I don't frequent it other than read the occasional site that has tumblr in the addy (is that what is meant by being on tumblr??).

Hope this explains a bit clearer what I have been experiencing.  Any enlightenment into why and wherefor this should be happening would be greatly appreciated.

-Val
 

Could it be a bug on your PC? Because when I go to ummzaksbest, either by your above link or by googling, I do arrive on the site. I don't know anything about tumblr, and not all that much about computers, but you might want to try deleting your browser history and cookies, and see whether the problem persists. (Of course, when you do delete these things, you'll have to re-type the complete addresses of your websites and log into your forums - depending on how keen you are to go to ummzakbest's website it might or might not be worth it.)

Unfortunately I don't have an answer, but if it's only happened on that particular blog, which you don't really want to visit anyway, then I don't think you should worry about it.  If it happens with others that you do want to see, then it might be a problem that you would have to deal with.

I have asked other people, we all did the same : logged in (and not), we connected to the site and it went fine. No idea how that problem could have happened. Still, like Ivy says, it's a good thing that it's not a valuable blog !