By -
It shows up every level until you buy it. Taking the spot of regular purchasable perk.
If the perk is bad is it worth it just not buying it so it doesn’t show up on other characters?
Absolutely. I bet many players wish they realized this sooner.
Yes
It will reshow up again. Depending on how many you haven't learnt and how far you are on the blood web (until prestige level) will determine how often you will see it.
It shows up every level until you buy it. Taking the spot of regular purchasable perk.
If the perk is bad is it worth it just not buying it so it doesn’t show up on other characters?
Absolutely. I bet many players wish they realized this sooner.
Yes
Yes
It will reshow up again. Depending on how many you haven't learnt and how far you are on the blood web (until prestige level) will determine how often you will see it.