Never had such a widespread issues with Sarracenia before. I have about 10 plants (not all in the same area) that have these spots which eventually turn into scars. Any ideas what this may be?
Do you overhead water or has there been rain before this occurs? Sometimes water droplets sitting on the leaves can magnify sunshine (sorta like holding a magnifying glass over ants) and cause small, stippled sunburns. Usually it only happens if the plants are watered when there are clear skies and strong direct sun.
If you determine this is what's causing it, try to avoid watering around noontime when the light is most intense. Switch to early morning or evening.
Maybe give a run-down of your growing conditions (light, water, fertilization, media, etc.) if you have time.
The last pic looks possibly like thrips, but the pic is not clear enough to be certain.
As for the others they could be enlarged nectar glands, possible insect bites, or something else.