Received 10x less bytes than in the previous airdrop

You've obviously not been paying attention:
For the next distribution on September 6, we are changing the ratios in favor of Byte holders and slowing down the distribution to have more time to build out the cashback program:
BTC to Bytes: every 160 BTC gives you 1 GB from the distribution (or 0.00625 GB per BTC).
Bytes to Bytes: every 10 GB of existing balance gives you additional 1 GB from the distribution (in other words, +10% to existing balances).
Similar ratios for blackbytes.
The updated rates were also posted in the First Post on the First Page...
What you receive, is proportional to your balances in BTC and Bytes on the Full Moon of September, on September 6, 2017 at 07:02 UTC:
BTC to bytes: 1 BTC of proven balance gives you 6.25 MB (0.00625 GB)
BTC to blackbytes: 1 BTC of proven balance gives you 2.1111 * 6.25 million blackbytes (money supply of blackbytes is 2.1111 times more than that of bytes)
Bytes to bytes: 1 byte on any Byteball address gives you 0.1 new bytes
Bytes to blackbytes: 1 byte on linked Byteball address gives you 0.21111 blackbytes
Putting this another way, to receive 1 GB from the distribution, you need to already hold 160 BTC or 10 GB. These same holdings also give you 2.1111 GBB (giga-blackbyte).