It depends on the phrasing. If you’re just saying “me too” you’re just annoying the maintainer instead of adding a silent +1 reaction.
If you add one more use case that might help the maintainer reconsider the feature, then I’d find it acceptable. Sometimes the issue opener didn’t explain the utility that well or wrote some example that made it sound like it would be a niche feature and not worth it.
Yeah, I wasn't thinking of GH specifically, but if you have the silent thumbs up option, then a "me too" with no meaningful contribution is a bit rude.
If you add one more use case that might help the maintainer reconsider the feature, then I’d find it acceptable. Sometimes the issue opener didn’t explain the utility that well or wrote some example that made it sound like it would be a niche feature and not worth it.