Dani Alves says Barcelona "do not care about the people who made history for the club" following his release by the LaLiga giants last month.
The Brazil international returned to Camp Nou last November and made 17 appearances after being officially registered in January, but his short-term contract was not renewed.
Alves spent eight years with Barca in his previous spell in Catalonia and won 23 trophies in arguably the most successful period in the club's decorated history.
During that past stint, the 377 chances created by Alves were bettered by only five others from Europe's top five leagues, two of them being Lionel Messi and Cristiano Ronaldo.
While grateful to have had the chance to return, the veteran full-back is upset at the manner of his latest exit and has taken aim at those in charge of running the club.
"I didn't leave sad. I left happy to have returned to Barcelona. I dreamed for five years wanting to live this second moment," he told The Guardian.
"The only thing I didn't like was how my departure was handled.
"Since I arrived, I made it very clear that I wasn't any more a 20-year-old guy and that I wanted things to be done head-on, without hiding things.
"But this club has sinned in recent years. Barcelona don't care about the people who made history for the club.
"As a [Barca fan], I would like Barcelona to do things differently. I’m not talking about myself because my situation was another scenario.
"I am eternally grateful to Xavi and the president for bringing me back. I found a club full of young people with incredible ideas on the pitch.
"But it needs to improve the work outside the field. The mindset is totally opposite to what we built a few years ago.
"Everything that happens on the field is a reflection of what happens outside.
"I'm supporting for Barcelona to come back to the top, but it's super-complicated. Football is more balanced, it's a collective game. And that has been left out at the club."
Alves scored one goal and set up four more between his second debut on January 5 and the end of the 2021-22 campaign.
That is a tally bettered only by Ferran Torres (six), Jordi Alba (seven) and Ousmane Dembele (11) among Barca players over that period.
Despite recently turning 39, Alves has made clear he intends to find a new club in order to remain part of Tite's Brazil plans for the 2022 World Cup, which begins in November.
"I know that everyone is talking about my age, that I am old, that 20 years ago everyone wanted me and today not," he said.
"But I completely disagree because I have an experience today that I didn't have 20 years ago. When there's a big game, 20-year-olds get nervous and worried, but I don't.
"Age has its pros and cons. There are many things you do when you're 20, but you don't do it when you're older.
"Maturity comes from just living. I also have the experience of having lived almost everything in the sport."
Alves, capped 124 times by Brazil, added: "The last dance is when you're going to retire, but I think I’ll keep dancing.
"A dance is always welcome, regardless of the place and which dance. I do not think like that.
"And the last dance has already been done. It's better to create a new chapter, a new series. It's another chapter of my life."