i do not accept zaps, although thank you for the thought. Transmitting Bitcoin can be considered a violation of AML laws and people have gone to prison for p2p bitcoin transactions. Would they come after me for a 25 satoshi zap? Probably not, but why take a chance for 25 satoshis? I love the fact that people are using Bitcoin for micropayments on social media, it's great and I hope it continues. But you won't see me doing it.
I would only transact in Bitcoin in an emergency.