Earlier today on another site in the network, a user posted a question like this:
Is there a better way to use [x]?
There was a lot more to it, but the very first comment addressed this question directly and explicitly:
Why do you want to use [x] and not [y]? Also have you considered using [z]?
I took this latter sentence as:
You should consider using [z] instead of [x].
And proceeded to explain why [z] is not a valid alternative to [x].
The commenter vehemently insists that it should be clear and obvious that by starting the sentence with "also," I should know that they actually meant:
You should consider using [z] in addition to [x].
Can someone please explain from an English and grammar standpoint why having "also" at the beginning of the sentence - with or without a comma - does not associate with the thoughts in that sentence the way he/she thinks that it does?