Oregon's long running vote-by-mail means that, despite voting in every election since I was 18, I've never been to polling place or gotten an I Voted sticker. One of these would make up for that.
Are you sure? Next time you get your mail ballot check the extra sheets papers and information pamphlets for a sticker.
I know that initial ballot envelopes in some other vote by mail states do include that sticker, along with other election information, but I have no idea how universal that approach it.
Here's a video of The Oregonian trying to fix the situation.
One county offers proper stickers and I think the county that Portland is in (Multnomah) offers "virtual" stickers, but I've never lived in those counties.
I am disappointed in Oregon. I have voted by mail in Colorado and California (not at the same time lol), and both states mailed the I Voted stickers with the ballot.
I'm usually pretty shit at guessing the era of specific meme behavior, but this feels like a callback to early 2010's and I don't think anything can ever top the Dub the Dew contest.