Haha that is a low ammount , someone maybe wrong the address and thats is , you should be happy for that ammount of btc haha :d
lol it's only 0.0000001btc, maybe that person just testing his wallet and sent the bitcoin randomly.
Not likely. From the transaction you can see that he sent 0.00000001 to 750 different addresses.
Maybe trying to spam the block/mempool? I'm not sure if that's how this works.
Edit: This is the address doing that "1SochiWwFFySPjQoi2biVftXn8NRPCSQC".
And that's not the first time he does that. Check the address on any explorer and see for yourself the amount of transactions with +700 outputs.
I also found quotations to this same addresses from 2014 where this person was doing the same thing
Thread from 2014:https://bitcointalk.org/index.php?topic=459845.0;all