Reddit宣称Old Reddit的登出体验是"滥用爬虫和自动流量的重要来源"，并以缺乏"现代安全堆栈"为由要求用户登录才能访问old.reddit.com [1]。
然而技术分析表明，Reddit对Old Reddit的限制动机可能另有所指。Old Reddit主要由纯HTML构成，加载量仅约1MB、发送数据约0.5MB，而New Reddit的数据传输量是其5倍之多 [1]。同时，Old Reddit默认加载200条评论，New Reddit则仅加载25条 [1]。相比之下，New Reddit采用了更为复杂的JavaScript架构 [1]。基于这些数据对比，观察者指出Reddit真实目的可能是防止内容爬取，而非出于安全考虑 [1]。
Reddit has announced that logged-out access to old.reddit.com will be restricted, citing security concerns. The platform stated that "the logged-out Old Reddit experience is a significant source of abuse from bots and automated traffic." [1]
However, technical analysis suggests the restriction may serve purposes beyond security. Old Reddit operates primarily through plain HTML, downloading approximately 1 megabyte while sending around 0.5 megabytes of data. [1] New Reddit, by contrast, requires roughly five times the bandwidth. [1]
The difference extends to content delivery as well. Old Reddit loads 200 comments by default, whereas New Reddit displays only 25 comments initially. [1] Reddit has justified the change by asserting that Old Reddit lacks a "modern security stack," [1] though critics question whether plain HTML architecture genuinely presents the security risks the platform describes.
The move effectively prevents unauthenticated users from accessing the simplified interface, potentially restricting web scraping and automated data collection while redirecting users toward the more resource-intensive new platform.