Most articles will tell you that poor grammar can kill sales.
While not as important in blog posts as in sales copy, grammatical errors can dissolve credibility, possibly resulting in fewer sales.
But is there anything empirical to support this?
On a high level, it seems to make sense.
And while spelling mistakes haven’t been heavily researched in relation to revenue, optimization, or growth, there is a small amount of research that suggests spelling mistakes impact credibility in negative ways.
Then there are some business experts that directly relate spelling mistakes to lost revenue.