A new idea is blowing in the aviation wind: allowing certified flight instructors to be automatically allowed by the FAA to fly paying passengers on trips of up to 300 nautical miles in length, for compensation. Heretofore, CFIs were not allowed to carry paying passengers from one airport to another unless they were part of a Part 135 air-taxi operation. However, the majority of CFIs have, at some time or another, taken passengers somewhere and dropped them off for a fee, logging it as a "lesson." Not legal, but safe, efficient, time effective, and done often in some areas.
This is a companion discussion topic for the original entry at https://www.avweb.com/features/cfis-as-air-taxi-operators-exempt-from-part-135