Well hmmm lets see..
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Christianity Today seems like a good place to start.
2015
Adventists: Can Ben Carson's Church Stay Separatist?
"In 2014, for the 10th year in a row,
more than 1 million people became Adventists, hitting a record 18.1 million members. Adventism
is now the fifth-largest Christian communion worldwide, after Catholicism, Eastern Orthodoxy, Anglicanism, and the Assemblies of God."
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And then there is USA TODAY -
2011
Adventists' back-to-basics faith is fastest growing U.S. church - USATODAY.com
"
Adventists' back-to-basics faith is fastest growing U.S. church"
"Newly released data show Seventh-day Adventism growing by 2.5% in North America, a rapid clip for this part of the world, where Southern Baptists and mainline denominations, as well as other church groups are declining. Adventists are even growing 75% faster than Mormons (1.4 percent), who prioritize numeric growth.
For observers outside the Seventh-day Adventist Church, the growth rate in North America is perplexing."
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So how are they doing that?? well they do it using the very method you say in your post that you can't imagine being used.. to do that very thing. -- They start by showing that the proven predictions of the Bible - prove that the Bible is inspired by God.