What should I know about getting a SETV in Thailand and the implications of a red warning stamp in my passport?

Just got my SETV from penang wanted to let you know guys

-I had all my documents ready✅ + I have no overstays or any visa rejection on my passport ✅but I was questioned why I was in thailand for long time and I explained them my reasons.✅

-Today when I went to pick it up I was asked to wait and I could tell something was wrong. Then I was asked to show a ticket back to my home country if I wanted to get the visa.

-There is a van waiting in the front. Someone there told me he can help with the ticket right there but he has 70 ringgit service fee.

-Anyways I wasn't interested in that I was walking away to find a taxi and go back to my hotel and handle the flight ticket issue. Then security guy called me back, when I went inside they said let us ask again maybe they can help so you don't had to go all the way back. So I waited and finally I got my visa!! THANK YOU THAILAND 😍

-But my passport was marked as in the photo, so my question is do you think would this affect my future trips? (I know it'd affect for Thailand obviously but I mean from Europe, New Zealand, USA or other asian countries etc...

And my other question do you think could I get 1 last extension on this visa?

And I'd like to leave my advice for you here;

-Definetly have ALL the documents! They wouldn't tolerate anything. Flight tickets in and out, accommodation, bank statement, copy of id page and malaysia stamp page, 2 photo.

-Maybe penang is more strict than others or maybe all embassies are getting so strict I don't know... I am saying this not because of myself but because I saw another girl there get marked at the passport as me and she only had 1 entry stamp+1 visa, she was from brunei.

I wish you all good luck and lovely time in this beautiful country! <3

Thanks a lot for advices :) 🙏