Don't abuse their tolerance and respect their customs. The same way you'd expect someone to respect you and your house rules if you invite them home. You just have to accept that people live differently in different parts of the world, maybe it's not them that are intolerant.
I'm convinced a global tech event can be hosted in Zanzibar where everyone is welcome and safe.
Your country's law punishes being gay up to life in prison.
According to the 2007 Pew Global Attitudes Project, 95% (+-4%) of Tanzanian residents believed that homosexuality is a way of life that society should not accept, which was the seventh-highest rate of non-acceptance in the 45 countries surveyed.
And this is recent news in LGBTQ health. Tldr: state sanctioned murder of LGBTQ people https://www.hrw.org/report/2020/02/03/if-we-dont-get-service...
Maybe YOUR experiences are fine. But it's not worth taking any chances on feels when the law says 'up to life in prison'.
Shithole country is not worth coming to if you're: LGBTQ, pagan, and/or an apostate. You're basically a walking death penalty for the crime of 'existing'.
I hope you see how ridiculous this "just don't show it" is, especially coming from folks who think LGBTQ+ is all about kissing and holing hands.
A global event should not be hosted in a country, state or a city where even the organisers are unable to make adequate arrangements for the safety of all attendees and speakers.