Proud to not confuse them although I am not a native English speaker. There are though some grammar tricks similar to your example that trick me.
Some of the ones making this mistake on Steemit might be doing that due to a lack of attention when writing their articles with speed of light, but that doesn't affect them that much if they have some constant upvoters that don't even read their articles.
For the rest of us is grammar that eats us alive.
Its grammars fault that it's that hard to get in the mouth of a whale :)