I think you can find lots of information from Ecency (or Hive, PeakD) FAQ. Here I will talk about a few points not mentioned in FAQ.
Wallet is account name, not general meaning in the blockchain (i.e., not equivalent to bank account like other blockchains).
How to prove it? Here it is: Using your Chrome, go to https://hive.io/wallets/ . You can see Ecency, PeakD, LeoFinance, Actifit and other Dapps. The you type https://hiveblocks.com/@ecency in your Chrome, you can find an entity called Ecency in the blockchain. Now you understand what is wallet in Hive, right? You can try yourself for other apps, just replacing @ecency with other wallet name (for example, @peakd).When existing Hive accounts create new Hive accounts, the creating account by default becomes the trustee of the created account.
If you read my previous blog, Dissect it yourself (DIY) - Hive Whitepaper - Node, Key and Account Recovery, you will know that you can use trustee account to recover an account. Also based upon the fact that wallet is account name, I decided to track which accounts are related to Ecency, PeakD, LeoFiance and Actifi. I go to hiveblock.com and search each account name. By using recovery account information, I will be able to link those accounts: Here are what I find:
Ecency: esteemapp; good-karma; roelandp; gtg.
PeakD: steempeak; asgarth; jarvie; sjarvie5
LeoFinance: khaleelkazi; leo.bank; blocktrades, steem, steemitadmin.
Actifit: mcfarhat.Individual front-end and websites on Hive blockchain may censor you Hive content as they deem fit, though Hive doesn't regulate or provide constraints on the type of endpoints built on it.
Community owners can hide undesirable submissions by muting them based upon their own criterions.
This will end my study of Hive Whitepaper. My impression is the business selling point is weak: 1) If you want to have censorship-free space, Hive is not, strictly speaking. You may get limited by your stakes, websites used and communities you're in. 2) If you want to make money, I think only big whales can or you are big whale's friend according to the voting mechanism. Also wish Hive/USD exchange rate higher. Besides, when cash out, it takes you a bit of effort to get your check. However, if you use twitter, youtube and other traditional social media tool, they share the advisement profits with you and the checks are mailed to your home, real USD. Simple! For a newbie like me (first time blogger, only two weeks in Hive), I don't feel the strong attraction here, let alone the blog veteran in twitter. I am still here because I want to study this new technology. Hive will have a long way to go, I think. Good Luck!
My bread and right record: Today I have 0.059 HIVE, 100% Vote power, 0 Vote Value. (I won't post this information for every blog. It is boring, never change. But I will post when I get 1 HIVE.)