I'd disagree with that statement.
Posts on the forum generally contain a mix of facts, anecdotal evidence, perceptions ... .. and a lot of misinformation. There is also the big issue that all the caveats and assumptions are not listed or the specific scenarios explained. For example, travel advice is inherently different depending upon the nature of your offence, where you are travelling to, any individual circumstances etc.
The better posters provide links to evidence or support their comments in other ways.
While I cannot vouch for the overall accuracy of AB2014's posts, I have generally found when he/she comments on things where I have specific facts myself, he/she has been very consistent.