"What is the value of having my voter record?"
"They'd know who to prevent from voting.
#7 | POSTED BY DANNI"
Kind of, if they surmised. The reason this information is useful to these groups, Eberly, is because it shows who votes. It DOES NOT include information about who you voted for, but it does include your biographical data, political affiliation (if any), and whether you voted in past elections, and which ones.
I'll throw a bone to Danni: There is no reason to spend resources suppressing the vote of people who do not vote. There is a reason to target "get out the vote" efforts on people who are likely to support your candidate (for instance, they are in your preferred political party) but who have not yet cast a vote or historically don't always vote. (Whether you have cast a ballot is public information that is available close to real time. That's why I vote (by mail, in Oregon) right after I get my ballot. If I wait, I'll start getting calls from friendly progressives, encouraging me to vote.