Don't be that naive. Factom used this method to get some attention and if you do the math, you will see:
Approximately 31 BTC / 0.0005 BTC = 62,000 "Dust-transactions". Even friends of mine got a little surprise from Factom without having connections to Factom or being invested.
And no, to be recognized as supporter of blockchain-technologies (because somebody obviously has a Bitcoin-address) doesn't mean what you would like to imply with:
"recognized as early adopters or supporters of factom foundation and could even be among backers of their ico. Or they themselves could work at factom."Or do you believe Factom recognized early adopters of Factom by sending 0.0005 BTC to approx. 65,000 random addresses?
That's ridiculous.
And again: They didn't say that. Johnston said:
"The reason the Factom team sent these bitcoins out is to recognize you as an early adopter / supporter of new blockchain technology projects. (Your address was among many on the bitcoin ledger who previous supported other community projects)
We hope you will check out the Factom Software Sale and use this bit of bitcoin to claim your first Factoid(s) and thus be able to join our community as a beta tester / early adopter. "He also said:
"If you aren't interested, that's cool just keep the BTC as a small tip for being an active part of the community."
It's called advertising. ;-)