It’s a forum for low end providers. You’re dealing with largely unheard of providers often with seemingly impossibly low prices, so you have to wonder if quoted specs are real (yeah before anyone tells me, the “reputable” flat rate providers are also oversubscribed), whether they’ll disappear on moment’s notice or without notice, whether you can trust your data with them, etc.
Yeah, it's totally hit and miss with some of these providers. Some will try to kill your box once it becomes unprofitable.
I have a free VPS from Oracle that's been running for almost a year now, but I sweat about it regularly as it runs all my analytics.