If the mistaken summaries are similar to each other

Nah, they were totally different summaries. Both used words I didn't say and that don't map at all to arguments I made... it's like they read something that's not there.

this may mean that the post did not get across the point you wanted it to get across.

That, or people mis-summarizing for argument's sake?

Either way, it's up to me to get the point across clearly. I thought this was a fairly simple, straightforward post, but apparently not.