That's okay if you prefer irc more than forum.
What does not kill you makes you stronger. I can understand you feel intimidated on the forum. Me too, get criticized. I posted some codes, which I was sure worked perfectly. But still some could tell me there were security issues, potential problems, not efficient, etc. As a normal person, I felt bad. But instead of doing nothing, I studied their advice. It turned out, what they said were true. This forum has many professional programmers, their criticisms mean to make you a better programmer.
Sometimes there are people who are not very polite and seem unkind. That's okay, cultural differences I think. They may talk too directly but they don't really mean to hurt you. Unless trolls.
Sometimes I find some bugs but I’m not sure if I should report them because I’m still using an old version of Lazarus.
If you are not sure about the bug. Post it on the forum first. Some may test it on different machines or tell you if it has been already reported or solved on the newer versions.
I recently finished my first application in Lazarus but I’m having difficulty with flickering trackbars when I resize and it seems to not work at all for very high resolution. I guess it will take awhile to find out what I did wrong.
That is what forum used for. Start a new a new topic, post the issue there and get help.
For the politic issue, I better stay away. I'm not good on it.