Re: [ANN] a-ads.com: Bitcoin advertising network. Advertise now!
Keeping money at a-ads account is risky too, so we prefer to get rid of them as soon as possible 
If you lower down payout threshold from significant 0.001 BTC to something more reasonable - money will go away even faster from your wallets
And now I'm serious - bitcoin network transaction fee are very low now - so maybe it's makes a sense to reduce payout threshold?
With the current block size limit on-chain transactions are not good for small amounts. If services like ours start doing them, the fees will go up very quickly. Moreover Bitcoin adoption and the fees are likely to increase anyway.
Micro transactions are not only expensive to send, they are expensive to receive as well. If you receive a lot of microtransactions to your bitcoin address, your wallet will become fragmented and you won't be able to spend the funds without paying the unreasonably high fees.
The only known option for Bitcoin micro-transactions is the Lightning Network, which is still in beta and is not that popular yet.