The journal has a reputation for being a "free forum where extravagant views on physics (in particular, those involving parapsychology) are welcome".

[1] The journal has been accused of charging authors for publication without disclosing the fees up front.

[2] Beginning in 2009, and for some period of time, the journal was affiliated with the American Institute of Physics, which managed subscriptions.

[3][4][5][6] In 2003, the journal published a paper describing Randell Mills' hydrino theory, which is at odds with quantum mechanics and widely rejected by physicists.

[9][10] In 2017, the journal published an article from an amateur physicist who claimed to redefine the elementary charge and eliminate the fine structure constant, directly in contradiction to mainstream physics.