I stake mine with 3' stakes. The reason I use them is as a protection from strong winds during storms. During the summer it is not uncommon to get strong straight line winds that will blow over or break your pepper plants. It is heart breaking to have a plant full of pods snapped by the wind. Anyways I stake them and it really minimizes that type of damage.
I don't tie them tightly to the stake but do leave a little room for movement, haven't had any problems with thin stems.
I don't tie them tightly to the stake but do leave a little room for movement, haven't had any problems with thin stems.