Well one possibility would be a few words in the beginning, a summing up who you are and what you like.
Like a nice picture, or a portrait.
If you could describe yourself in a short few sentences, how would that look like ?

Then going into detailed explanations.
I'd say 'don't let yourself getting distracted by a few frustrated people.
Especially on the internet some people might forget their manners.
Imo best to delete their messages, put them on a blacklist and forget about it, moving on to meaningful and nice people.
A lot of the internet is about that, about filtering.
Also concerning content. A lot of info can be found on the internet. Is advisable to keep to sane and reliable places.
Unfortunately some people have a feeling they have to fight, and change thus.
I'd say try to relax and be you. Try to live your positive sides and keep to positive people.
hugs