Well, I will say that what you say it is true in some ways and it does affect the game with the cheaters inflating AP and that it is not as much at lower side just few clans. In the other hands, there are people with multiple accounts playing with family using same IP. That doesn't mean they inflate AP but instead they play with family using same network and same phone or comp etc.
I am one example, I do have multiple accounts but play with family. I have members are minors so I do not allow them to have e-mails accounts and ensure they use same equipment to have control.
In my opinion the game should not restrict multiple accounts at all. Some people also play for fun and create different to see results and enjoy a game with multiples accounts like me. I have been solo player from start never in clan just till recently and of course there are millions of clans here and their members asking to let then win for their ranks or clans need and that goes toward all clans including the top. I give free to many top clans asking so AP inflate not just only by having multiple accounts but by players asking and some granting like me during my constant test that sometimes I take 40 losses on the road for my data collection.
No matter what, cheaters and inflating etc always will be there and locking IP will say it is not proper and as example I have 2 accounts that I p2w even my family use the account next to me so I let them play and test and learn.
Sure I get you but this game it is been like that according my family member player since 2012. Play one account or more it is fine. What you do as clan member or clan direction internally it is clan matter. All clans have different views how to make the clan a top or what more matter as team but inflate I will say it is wrong using accounts in that way.
Some use frantics because nothing else, some are p2w unlucky having parts at FB's some are lucky with FB's and are f2p etc. Just focus in your own play and enjoy. I know that harm the clan I am but we are not focus in AP instead fights titan, tickets and war.
Do not take me wrong, yes I get you and you have a lot of reason and I agree but sadly not all play in that way so will lose accounts that with honest hard work build like me to be screw in that way it is wrong. Do you know how much work took me to L250 my accounts farming in an insane way 24/7 to make them in less than 10 months at that level and pay for some items not even in use but for future when I can accumulate gold farming and crafting taking an eternity to make it happen?
OKI