1 satoshi i common on most of the gambling sites and gambling at 1 satoshi won't make any big difference even if you win because minimum withdrawal on most sites is 0.001 which is standard throughout gambling. If you want to gamble below 1 satoshi buy doge they allow people to gamble with 1 doge which is 0.001 satoshi or something around this
that's right if you would like to bet lower than 1 sat then buy doge as its also been use for some gambling site they will allow you to bet using
this coin and you will be able to bet much smaller stake then convert it to btc again if ever you win and enjoy.
Not a good to choose dogecoin just to bet a smallest bet.. i think you can use even just a ethereum is enough to gamble for small value..
For now because of the price increase of bitcoin i think the gambling activity using bitcoin will be affected and i think the price of bitcoin can be increase more soon that i think it can reduce our activity in gambling or if we want to stay long in gambling and play with small bets exchange bitcoin into altcoin is good alternative..