Keep thinking about this and maybe bootstrap file works better (faster) in POS coins because if I remember correctly, I have used it only for alts like Pivx, Dash, Bitsend, Masternodecoin and never in POW mined coins like our old good Bitcoin?
Bitcoin has bootstrap file too in the past. But
since about version 0.10 something has change and the verify blocks steps seems to be the bottleneck, being slower than the actual download. And yeah, bootstrap.dat is a security risk. But that doesn't stop people post and use bootstrap. Old habits don't die easy.
And whoever doesn't have the time, space, willingness to do this sync properly, there are plenty of good SPV wallets. That's what I also use.