Yes that is correct , it is very hard these days honestly , because facebook gets the footprint which is the mac address of your device that can change only in one condition that you root your device , the people that are creating many accounts are having various devices actually indeed .
Cloaking will reduce the risk, as the visible link will differ from the actual destination but when everyone starts using the same cloaking service Twitter will catch on (and if you use an obscure domain Twitter can catch that too). So the best approach is probably as @mafi0za302 mentioned which...
Bots can be useful, but not dependable, useful for people who are new to crypto investment, this will help them make better choices and give them good insite about investment, but its advisable not to trust your money on the hands of a bot.