Let me tell you my tale :
First of all i made a technorati account with username A and then claimed this blog , later i wanted to change my userid and tried to edit but i got to know that once you created an id , you cant edit it . So what i did was that first i unclaimed this blog and then created another desired technorati id B and then claimed this blog .
But to my surprise technorati did not unclaim my blog with user id A .
So now it keeps on displaying 2 authors for this blog
When i had my A id , i had authority 4 but now it shows just 1 and its completely crap .
Even they have made my location USA without me choosing any , also when i edit my blog by adding tags and save it , it just refuses to get saved and i think my account has been tricked !
My blog even is not indexed by technorati and cannot be found in search results
I have filled form to contact them , 3 to 4 times , but no reply
Even there is no link to delete account like in google or friendfeed or facebook which is very worst case and seems to be getting complicated and people should think before registering technorati .
Whenever a blog links at you, they will increase your authority which means your ranking is been improved in blogosphere. Apart from being featured in top 100 blogs you will be getting massive subscribers and unique traffic as technorati is been accepted globally in blog ranking. I dont know how is this true coz i haven't got even a single visit and my claimed blog , which i can see still donnot have a thumbnail and its still queued .
Now no one can save you and if you badly need to delete your account stick to this link http://getsatisfaction.com/technorati/topics/delete_technorati_account and wait for any official news in ordert o do so !
Careful to read Blog claiming Faq