I guess there is something wrong.
Blocktime is arround 15 minutes but the difficulty is still growing.That's probably due to the today's hashrate peak between 02 and 03 GMT (over 5Mh/s), but the algo should adapt and adjust the diff faster.
I am hearing a lot of questions about block difficulty mentioned here and in Slack. I'll try to clarify.
CryptoNote derived coins adjust difficulty based on the time it took to hash the last day's worth of blocks (720 blocks in our case), minus 8.3% of outliers on each end (~17% total). It will take time for the network to re-adjust after someone pointed a lot of hashing power at the pool. The coin is always attempting to target a block time of 120 seconds based upon those last 720 blocks.
This scenario will become increasingly less common and probable as the network grows. It is vulnerable to an influence like this due to the immaturity of the blockchain and the lack of hashing power, especially as most hashing power is concentrated in a single pool. For now, this is our reality.
The difficulty adjustment algorithm works quite well. It will work better once the coin is more established. For now, we will have periods of fluctuation due to the factors described above. Network hash rate as displayed on the pool is calculated as a function of the last X blocks, just like difficulty. It's not necessarily representative of the true hash rate if people only momentarily direct TONS of hashing power at the network for a short period of time (which is what happened yesterday).
To address the questions about 'why no block explorer at launch' - I'm not sure it's really necessary with a young network. The vast majority of transactions are just mined coins, especially before the coin is on an exchange and has more value associated with it. We had our hands full with other matters and wanted to offer the community an opportunity to engage and receive a handsome bounty. Nobody was able to fulfill the bounty so we took care of the task. Regardless, it's done now 
If I understand right, if someone gives for pool 10 GH/sec (for example) for a 1 hour, network hasrate and difficulty will grow slowly and much more time than this 10 GH/sec worked. And after peak, network hash and diff. will decline as much time as it grew up.
Is that so?