Apparently there is a lot going in to fingerprinting a browser (Tsl analysis, HTTP headers etc), and changing User Agent string is definitely not enough. By acc

Apparently there is a lot going in to fingerprinting a browser (Tsl analysis, HTTP headers etc), and changing User Agent string is definitely not enough. By accepting only major browsers, smaller ones are forced to adopt the same standard. Seems it would create a market for standardized bots. The result would be a monoculture of browsers and more advanced standardized bots.