why black 3 games in a row? what a dump

Color allocations are  random and you can get strings of the same color.

On the 8th, you had 4 whites in a row:

Lol flip a coin and see if it perfectly alternates between heads and tails

This place is also free. Stop whinging.

You should change your title to "Why white 4 games in a row?".

A few games in a row of the same colour is normal. Though the system tries its best to allocate you alternating colours, sometimes there is a difficulty. For example, two players of similar rating has played two games as Black in a row against other players and these two players meet each other currently (because there were no other players of similar rating at the time). What happens then?

I used to think that was the case and was told by a staff member that it's actually random, unless you've previously played the opponent, when it gives you the opposite color from the previous game.