During the 1980s and till the mid-1990s, he was a member of a French Press organization for Music-hall, Circus, "Dance and Arts". This organisation was presided by French journalist Jacqueline Cartier, and included authors and personalities like Pierre Cardin, Guy des Cars, and Francis Fehr.
From 1982 to 1986, he was a victim of illegal wiretaps (organized by the French President François Mitterrand), for his telephone conversations with the French writer and polemist Jean-Edern Hallier.[5]
At the end of the 1980s, he was a vice president of Amiic (World Real Estate Investment Organization, Geneva).[6] He was a lecturer, with others such as Pierre Salinger, François Spoerry, Paul-Loup Sulitzer, of some international meetings of this organization (that vanished in 1997).
At the beginning of the 1990s, he was, with Gilbert Prouteau, one of the writers and art critics for a French magazine, L'Amateur d'Art.
In 1994, he interviewed Gérard Mulliez, for the book The Customer Driven Company — Moving from Talk to Action (translated in French as La Dynamique du client) by Richard C. Whiteley.
In 1997, he served as Communications Director and member of the Mayor's Cabinet during the parliamentary election in Toulon. He was arbitrarily dismissed the morning after the successful poll and, months later, published "Le Chevallier à découvert" (Laurens, Paris). In 1997, he was also present when the township of Delphi appointed renowned environmentalist Franz Weber as an honorary citizen (Citoyen d'honneur).[8]
In 1999, he co-produced Studies (Chopin) recorded by Radoslav Kvapil.[9] From 1999 to 2001, he was the Company Secretary of Mea Publications Limited (United Kingdom)[10][11] producing the print and online versions of Ici Londres magazine.[12]
Since 2007, he has been a member of the World Grand Family of Lebanon (RJ Lebanon Club).[14]
In 2009, Thiollet signed a petition in support of the film director Roman Polanski, calling for his release after Polanski was arrested in Switzerland in relation to his 1977 charge for drugging and raping a 13-year-old girl.[15]
From 2009 to 2012, he worked as one of the France-Soireditors.[16]
In October 2016, after dedicating a book about Jean-Edern Hallier to "the youth native from Euroland, zone F, the victim of an old criminal political ruling class", he denounced in an interview "the French crime, committed by a political class, from the left as from the right".[17]
Les Dessous d'une Présidence, Anagramme Ed., 2002. ISBN2-914571-14-3
Beau linge et argent sale – Fraude fiscale internationale et blanchiment des capitaux (Tax Avoidance, Tax Evasion and Money Laundering), Anagramme Ed., 2002, ISBN2-914571-17-8.
La Pensée unique, collective work (with Jean Foyer), Economica/J. M. Chardon & D. Lensel Ed., 1998. ISBN2-7178-3745-0
Les baux sans peine (The leases without penalty), Axiome Ed., 1999. ISBN978-2844620408
La Vie plurielle (Conjugal life. Types of union in the new legislative arena : information for all on their advantages and disadvantages), Axiome Ed., 1999. ISBN2-8446203-61[21]
^International Amiic Tribune (Geneva), July 1988, March 1989, July 1989 ; International Property Business (Geneva), December 1989 ; European Biographical Directory, R.H.Neirijnck ed., Bruges, Belgium, 1997, p. 838. OCLC904995625