They waste crawl budget, slow users down, and crawlers may stop following after several hops There is no problem They improve rankings They are required for HTTPS
Google may eventually treat it like a permanent redirect and index the target URL The site is penalized Both URLs rank equally forever Google always ignores 302 redirects
The number of ads clicked The page's scroll depth The number of clicks needed to reach a page from the homepage; important pages should be shallow (within about 3 clicks) The number of outbound links