My recent question How might I measure the proportion of a ride spent in various hand positions, or has it been studied? has 3 tags. I added them in the order [drop-bar], [riding-position], [long-distance]; the latter is the least relevant and was an afterthought.
The browser titlebar reads "long distance - How might I measure..." which isn't particularly helpful, and the tags have been reordered to put [long-distance] first. I've noticed this before, but rarely has it been so clearly the least relevant tag that's used first, and never on one of my questions. I'm almost tempted to remove the tag.
So what's the logic behind the ordering of tags? Reordering seems like a bug given that the new first tag is used as part of the page title.