You can be inclined to think what you want of course about what I term as 'aggressive' - but what I was referring to was the customers who ask for the bill and add comments like "And I won't be paying a service charge/and you can remove the service charge before it comes because I'm not paying it!" Or similar, like they seem to think they've got me somehow and when I reply that we don't add a service charge, they don't seem happy as you would think, they go on to lecture me about how the hospitality industry need to change this and how wrong it is (there is the occasional 'oh good') - based on precisely nothing because we don't add a service charge, and I'm not in charge of the hospitality industry, so basically because I'm serving them that night, I am somehow responsible for the way other establishments are run and the fact that other places charge a service charge.
There's no need when you can just ask at any point if a service charge will be added, and ask for it not to. I'm not responsible for the way other businesses are run, what they've charged you and how they treated you, only what happens (to a certain degree) where I work, so no, I don't understand the defensiveness from people who behave like that.
In the same way that I don't approach and treat every customer thinking they're going to make a malicious complaint to get free stuff, or start grabbing at my junior staff, or abuse any one of the team because we've had it happen many times before, until they prove otherwise.
At least find out first if you're going to actually get charged the service charge before you start getting all defensive and snippy with someone who's not going to in the first place. I don't say anything and nod along and smile, but I am allowed to be pissed off about being told off on behalf of the hospitality businesses that do add a service charge. Like I said, I wish it wasn't allowed to happen because it would save scenes like that.
Your tone came across the same way as above, ready to jump down my throat over the slightest little thing - even when I'm in agreement with you over the service charges, and about the adding on for larger tables, as you are so at pains to tell me, some places do add it on for larger tables - because as pp pointed out, they use more resources - is it not preferable to all prices increasing to cover these incidental costs that a) the service charge is added to tables above a certain amount of covers and not all tables by default as this appears to be a big issue with it, and b) the customer is informed of the service charge ahead of time when they book/arrive so they are aware - so they can make an informed choice, which many have said here is the thing they object to.
Many have said that they would prefer to be aware of the total price at ordering, what I said (and yes, I know that some places do this before you tell me again) achieves that because under 10 people you pay the price on the menu and leave a tip if you want and over 10 people you pay the price on the menu plus 10%(or whatever) because the larger tables take more resources.
I'm literally saying what others are saying they would prefer - yet for some reason you're feeling the need to be patronising about it and that's a common thing towards hospitality staff - as much as people try to deny they do it.