You do, last time it was a lie that data in the DB can be compressed well. I claim that once people start using Byteball seriously they'll be storing high-entropy data and further compression won't help.
I see your post history, whats wrong with people compressing data and storing it in byteball?
what's the point of storing data there?
For example you can use Byteball to make a DNS like system as namecoin, the amount of data you store is what you pay for in bytes. Or you coud store ipfs hashes and use Byteball lightclient for looking up ipfs hashes and say a short description of its contents.
You could use it to make uncensored twitter. You could store uncompressable data too, someone stored a short bio of Assange from wikipedia and some others from this forum stored love messages.
Its up to you to make applications and make use of this awesome facility/feature.
The price to store data is payed in bytes, the price is calculated taking into consideration the size of data in bytes.