I'm legitimately curious what are legitimate reasons to have multiple accounts.

Some common reasons that aren't legitimate:

• smurfing
• "play with friends in comp at a lower elo" (smurfing with an excuse) - an account for a one weapon only or one agent only play
• an account to learn new agents because you can't do it in unrated for some reason...
• boosting (smurfing for profit)
• because you get banned alot (multiple accounts so you can be shitty attitude wise and not care)

I'm honestly curious because I cannot think of a good reason to have an alt account that plays comp. I get that some people may think having an alt for unrated might lower their 'elo rank' so that their unrated lobbies are easier but who cares it's unrated.... There just isn't a good reason to allow alt accounts into comp IMO.