Yeah, that too. Being in a hurry and not proofreading. Even if you have Grammarly there can still be mistakes. I know it's not all non-native speakers. As I said in the post, plenty of Americans can't, or at least don't, speak English properly.
I struggled for a long time to get my SP over 500. I finally got someone to delegate me some to get over. Now that I'm over on my own, and she took her's back, I see there is a way for fractional upvotes. I'll have to read that and save it in case someone else asks about it later.