The vote is a survey reflection of the majority and "the majority rules." Don't vote, don't count--results truly matter and AK voters hate income taxes.
Ex: income taxes will stick it to working consumers of the largest size (families). PA-SNAP/Soc. Sec. is exempt and I pay min tax on cap gains, hence poor and rich always escape income taxes.
Local sales/prop taxes are already in place.
Outside Anchorage we pay sales taxes on food, clothing AND shelter: a 6% sales tax (rents too) in Kotzebue and a 3% city/3% borough tax in Kenai and Soldotna harvesting revenues on the fullest shopping carts. But not mine.
The Kenai Peninsula Borough is fondly called "God's Waiting Room" (AK's highest concentration of elderly). With the cheapest cigarettes in all AK and senior prop tax exemptions, KPB has a welcome mat implying, "PERS Blue Hairs Welcome." 
Voters hate income taxes: we've no choice on local sales taxes, they already hurt working families.
Don't like prop taxes? Get old first, then smile.