Because I also dont know who else has noticed. But this effects every single person who uses slushs pool. Not just myself. (I dont know why some people act like things have no solution or no hope, or your stupid or make fun of u because you have your own opinion and a theory)
Yes, you have a theory based on some observations. That's fine. However, you haven't presented any data or proposed any possible technical reason why newly added hashing power is somehow less efficient per share at finding valid blocks. You're suggesting Slush change the pool to solve a problem you haven't shown to exist, and get offended when people tell you that no one is going to change the rules of the scoring system based around your opinion that you admit you haven't actually proven.