Hi mate,
i have travelled to Thailand alone a few times now, never been a problem , u will always meet fellow travellers, what part of Thailand u looking to go to, i've spent time in Bangkok, Koh samui, Phuket & Chiang mai -
let me know where u thinking of going too - & i'll give u some advise of what i know about the place - hotels, bars , restaurants, things to do etc

Cheers gary

i'll be in Phuket Aug 29th - sept 12th - if u there catch up 4 abeer or 2