Nope. They were invented in 1917 to counter allied tanks. It was super effective!
If they came close enough 
Whippet tanks caused twice as casualties in a six months then the Mark IV tanks in 2 years
Only because of the shock. After that wore off, tanks became more death traps for their own crews. 
50% of all French tank casualties, for instance, were caused by small arms fire
German K bullet amiright? and then those TUF 13.2mm
yet still tanks where very effective, for a WW1 situation that is.
The battle of cambrai for example, showed that the tank had potential
Didn't I go over this with you?
By the 3rd day, about 75% of the tanks were either broken down or destroyed. THe Germans never meant to hold the front line either. They sucked in the British offensive, turned around on better ground, destroyed it, cut off the advanced forces, and swept right into the british lines. They captured or destroyed almost every single British tank, and those that were captured formed the first German armoured units.
The tank in WW1 was an interesting concept, but it was far too pre-mature, unable to survive on a battlefield with its incredibly weak armour, poor handling, and crappy engines.
