The MSNBC host Joy Reid, under fire for allegedly using homophobic language in old blogposts, apologized on Saturday for any comments that belittled or mocked the LGBT community and said she had not been able to verify her claim her account was hacked.

Reid opened her weekend show AM Joy by acknowledging she had said “dumb” and “hurtful” things. “The person I am now is not the person I was then,” she said.

But she was unable to explain blogposts from a decade ago that mocked gay people and individuals who were allegedly gay. Reid has denied posting the remarks but said she had hired security experts found no proof she had been hacked.

“I genuinely do not believe I wrote those hateful things because they are completely alien to me,” she said. “But I can definitely understand, based on things I have tweeted and have written in the past, why some people don’t believe me.”

“I have not been exempt for being dumb or cruel or hurtful to the very people I want to advocate for. I own that. I get it. And for that I am truly, truly sorry.”

The posts that came to light in December were written for The Reid Report, Reid’s blog when she was covering Florida politics a decade ago. In posts, she refers to the then Florida governor Charlie Crist as “Miss Charlie” and suggests he was “ogling the male waiters” on his honeymoon after marrying his wife, whom he has since divorced.

Reid questioned whether the Crist marriage was a sham by a gay man who thought it would help him politically.

Reid apologized, saying her remarks were “insensitive, tone deaf and dumb”. On Saturday, she apologized also to the conservative commentator Ann Coulter for using transgender stereotypes to describe her.

This week, Mediaite revealed a set of other supposed blogposts. In one, Reid supposedly notes that “most straight people cringe at the sight of two men kissing” and writes that she could not see the movie Brokeback Mountain because she did not want to watch two male characters having sex.

Another supposed post says that a lot of heterosexuals find the idea of homosexual sex to be gross and that there are concerns that gay men tend to be attracted to young, post-pubescent types and want to bring them “into the lifestyle”.

Reid has said the posts were “fabricated and run counter to my personal beliefs and ideology”. She reiterated that on Saturday but acknowledged she has made hateful comments and has hopefully “grown as a person”.

“I look back today at some of the ways I’ve talked casually about people and gender identity and sexual orientation, and I wonder who that even was,” she said. “But the reality, like a lot of people in this country, that person was me.”

After reading her five-minute statement, Reid then led a panel discussion on gender stereotypes and issues facing the LGBT community.