What Happend To My Exp Becasue My Exp Is 1.1m Then I Open My SF And I See My SF EXP Is Gone My Exp Now Is 995k what happend?

Due to the constent boosting you dont get all the exp from the hackers boosting you. soo in other words dont boost?

Some exp doesnt count. Examples: If you get over 150kills, more than 15k exp, over a certain time of a game (meaning dont tap to 30 rounds) etc..