Honey bees will take what they want when they want. As you said, they are slowed down on the feed when the goldenrod started blooming. They had found another source of necter that they liked more.
You only want to feed during certain times of the year. mostly spring and fall. Unless you have a weak hive that needs feeding.
So for your first question no I don't think you can over feed as much as feed at the wrong time. You don't want your honey crop to be full of your sugar syrup.
You should have no problem with you hive becomming honey bound at this time of the year. Just make sure they have plenty of room to put the syrup and whatever goldenrod may be bringing in.
Honey bound hives are more common in the spring when the hive is building up fast, and the queen and the workers start "competing" for space. A hive that is honey bound, has used the brood chamber for the honey stores, due to the fact that the supers are full.
From what I can tell, I'd keep feeding. To make sure they have plenty of stores for winter.
BB
You only want to feed during certain times of the year. mostly spring and fall. Unless you have a weak hive that needs feeding.
So for your first question no I don't think you can over feed as much as feed at the wrong time. You don't want your honey crop to be full of your sugar syrup.

You should have no problem with you hive becomming honey bound at this time of the year. Just make sure they have plenty of room to put the syrup and whatever goldenrod may be bringing in.
Honey bound hives are more common in the spring when the hive is building up fast, and the queen and the workers start "competing" for space. A hive that is honey bound, has used the brood chamber for the honey stores, due to the fact that the supers are full.
From what I can tell, I'd keep feeding. To make sure they have plenty of stores for winter.
BB