Here is where the rule came from;
MEDIA COMMENTS, PUBLIC ATTACKS
The favorable public reputation of BASS as a sanctioning organization in the sport of fishing, the integrity of its officials, and the reputation of its media properties are valuable assets and tangible benefits for BASS. Accordingly, it is an obligation of competitors to refrain from comments to the news media that unreasonably attack or disparage the integrity of tournaments, tournament officials, sponsors, fellow members, fellow anglers or the BASS organization. Competitors are encouraged to express themselves and have the right to question the rules officials. Responsible expressions of legitimate disagreement with BASS policies are encouraged as opposed to attacks upon the integrity of the rules or officials. However, public comments that an angler knows, or should reasonably know, will harm the reputation of BASS, BASS officials or sponsors shall be considered conduct unbecoming a professional and will result in disciplinary action.
This was taken out of the BASS rules. Since the winner of the Weekend Series Championship will go to the BASS Classic they have a say in the rules.
FLW has the same rule just written differently;
8. Sportsmanship
All contestants are required to follow high standards of sportsmanship, courtesy and conservation and to conduct themselves in a manner that will be a credit to themselves, to FLW Outdoors, FLW Outdoors' sponsors, the sport of fishing and FLW Outdoors' efforts to promote the sport. Examples of conduct not complying with those standards includes, but is not limited to, the following:
Violation of, or failure to comply with, any of the official rules for the 2007 Wal-Mart FLW Tour.
Consumption and/or possession of alcoholic beverages or any kind of mind-altering substance during registration, the pretournament meeting or during tournament hours extending through the weigh-in procedure.
Abuse of, or addiction to, mind-altering substances.
Conviction of a felony within the past 36 months.
Suspension/disqualification from any tournament or fishing organization.
Any other words, conduct or actions reflecting unfavorably upon efforts to promote safety, sportsmanship, fair competition and compliance with tournament rules, or which fail to comply with the standards set forth in the first sentence of paragraph 8.
In case of any conduct not complying with the standards, FLW Outdoors shall have the right to refuse any application, or to deny a confirmed application, by returning the entry fee of a previously accepted application, or to disqualify a contestant.
From BassMaxx;
7. Sportsmanship and Conduct: All contestants are required to follow high standards of sportsmanship, courtesy, and conservation and to conduct themselves in a manner that will be a credit to themselves, to Bass Maxx, LLC, sponsors, the sport of fishing and Bass Maxx, LLC efforts to promote that sport. Examples of conduct not complying with those standards include, but are not limited to, the following: 1) Consumption and/or possession of alcoholic beverages or any mind-altering substance during tournament hours extending through the weigh-in procedure, 2) Abuse of, or addiction to, mind altering substances, 3) Conviction of a felony within the past 36 months, 4) Any other words, conduct or actions reflecting unfavorably on Bass Maxx, LLC. Bass Maxx tournaments or the sponsors of those tournaments or reflecting unfavorably upon efforts to promote safety, sportsmanship, fair competition and compliance with tournament rules. If conduct does not comply with the standards set forth, Bass Maxx, LLC., and its director shall have the right to refuse any application, or to deny a confirmed application, by returning the deposit or entry fee of a previously accepted application, or disqualify a contestant. Bass Maxx, LLC reserves the right to place an official observer in a contestant's boat at any time during competition hours.
A lot the tours are starting to have this rule with media exposure the way it is today.