I’m just trying to collect some data, also I guess this post will be useful for the rest of the forum users.
In my case, in 2018 I loss 32 times one after another using the dice system on freebitco.in.
Greetings
I'm a small-time gambler and yes I do martingale but I never go fast 10, or if my small funds will still allow me to go on, the longest I have been on a dice losing streak was only 10 it's hard to keep when you are in your bad day, you have no choice but to stop and only play with funds that you can afford to lose.
I know martingale will not work for me as I do not have so much enough that keep doubling and keep adding the money to keep gambling it. Also I do not gamble as such to make money so not worth it. Only for people who want to make money or just play for it may be interested provided they can afford so much money to have with them.