Why Avito bans mobile proxies?

Question

proxy

I'm running a small test for 100 requests asynchronously.
Literally after 40 requests, I start getting 429.
After all, in fact, there are not so many mobile IPs, he can’t ban me by IP in any way.
By the way, I'm trying to get through to Avito, without proxies in general, 403 is always pouring.
What can be wrong? I most likely misunderstand something in mobile proxies, and maybe in the operation of protocols.

Answer 1

Avito bans everyone except outbids and scammed.
specifically turned off vpn when I went to them