What does this NOTAM about a STAR mean?
Check for additional NOTAMS concerning the PIE VORTAC.  It appears that, for whatever reason that VORTAC radial is no longer functioning well at lower altitudes and, for whatever reason, the FAA is opting to not repair it.  As it's a needed navigational aid for that STAR, the additional NOTAM applies.  I'd guess the Orlando FSDO is in the process of decommissioning that STAR and issued NOTAMS until then.

UPDATE: It appears that this VORTAC out in Clearwater, FL has been malfunctioning, causing aircraft to stray off course and overfly noise sensitive areas at low altitudes, causing the Tampa airport management to receive a great deal of complaints.  The FAA has up to now been faced with the repair tasks on that navaid.  But it appears that, with the gradual decommissioning of VOR stations throughout the country combined with the preeminence of GNSS navigation, they have elected not to make the repairs and just leave the VORTAC as is for the foreseeable future.