Yes, I've been seeing grammatical errors or anomalies all the time nowadays. I figured most of it was due to ignorance rather than design. Of course there are typos that sneak into a statement from time to time, but some things are becoming common. Have the people really become systematically dumbed down for some reason? Has editing become a lost art? Here's a few I'm seeing:

When did the phrase "one of" as in "one of a kind" become "one off"?
"Then" and "than" are interchanged and misused very often these days.
Many seem to have lost the difference between "they're", "there", and "their". I'm noticing "they're" is almost gone, replaced by "there".
I'm seeing "are" being used instead of "our" more often.
"You" instead of "your" or "you're".

There are more examples and I'm sure those who read this can think of a few.

Some things are so badly written they barely pass for English. Is this evidence of ignorant people or could it be an anomaly of speaking into a device while it converts voice to text? In any case these errors can make a serious writer look like a moron.

Side note: "One off" seems so common now, it is accepted as normal speech and shows up in modern dictionaries and even Wikipedia.

teenage grandkids don't know how to sign anything. They never learned cursive.

wait till the Sun hits us with a massive solar flare
all electronics will die

the current generation will be crying into their broken cell phones