Because"88" is just two numbers,but "100100" is six numbers,type "100100" is waste of time,

coz 88 is shorter than 100100

because we like to use 1,2,3,4,5,6,7,8,9,0 .this ten numbers to instead something,so 100,100 should instead 1,0,0 . do you know what i mean? 100 should be read :yi,ling,ling, it doesn't sound like byebye. maybe during foreigners, you can use 100100. it's a good idea. you have talent to learn mandarin. hope you make great progress in mandarin in the future. 加油！hope to be your friends and encourage each other. i am learning english .and sometimes i need to be encouraged.

i think it is a good idea

coz we are lazy~but if u type “百百",maybe some people will think you are creative.